We generally do not think it appropriate to give kids the answers to their homework, but I will tell you how to figure it.  It is simple.  17 x... more

= 3c * (1 - c) + d * (3 - c)This cannot be factored more.Perhaps the real question is:Factor 3c - c^2 + 3d - 3cdThis would be:3c * (1 - c) + 3d * (1 -... more

7x^2+49x+42= 7(x^2+7x+6)= 7 (x+1)(x+6) more

Just like the previous one - 7x^2+58x+16= (7x+2)(x+8) more

8x^2 - 200y^2=8(x^2-25y^2)=8(x-5y)(x+5y) more

X^2 + 9x +8=(x+8)(x+1) more

X^3 - 2x^2 + 7x - 14=x^2(x-2)+7(x-2)=(x^2+7)(x-2) more

X^10y^3 - 4x^9y^2 - 21x^8y=x^8y(x^2y^2-4xy-21)=x^8y(xy-7)(xy+3) more

12 (5.00) bills 26 (1.00) bills   x=$ of 1.00 y=$ of 5.00   (x)(1.00)+(y)(5.00)=86.00                    ... more

By applying the distributive property, you get -3x(2xy + 3y – 2x)=-(6x^2y+9xy-6x^2)=-6x^2y-9xy+6x^2)Many people make sign errors since they tend to forget... more

If Negative multiplied by a Negative it will give Positive sign.  - x - = +Like-2 x -2 = 4-5x-10= 50and so onIf you multiply negative with positive... more

2x+3y=8given (x,y) = (x,-2)So here y = -2 putting the value of y =-2 in the equation you will get2x+3(-2)=82x - 6 = 82x = 8+62x= 14x= 14/2x = 7(x,y) =... more

X^2 - 7x - 1 = - 7X^2 - 7x -1 + 7 = - 7+7X^2 - 7x + 6 = 0(x-6) (x-1)So the answer is (x-6) (x-1) more

2x+4(x+1) =2(4x+1)-x-1 2x+4x+4=8x+2-x-1 6x+4=7x+1 7x-6x=3 X=3 http://library.thinkquest.org/20991/alg2/frace.html more

In the cardinal system, we say it increase by 3.in %age it increased by 100% (6-3)/3 and more

See the quadratic formula in the picture (note the + sign). There are two solutions one using plus one using minus.   x2 - 3x - 7x - 2 = 0  ... more

2x^2 - 3x + 1 = 02x^2 - 2x -x + 1 = 02x(x-1)-1(x-1) = 0(2x-1)(x-1)=0either 2x-1=0 or x-1=02x=1 or x=1x= 1/2 or x =1 >>>answer more

Hi Mizglow, the equation seems to missing a symbol. Is there a + or - between 6x and 1? more

I assume you have 2 expressions here 1st one - X^2 + 2x – 15/x^2 + x – 12 x^22nd one - x^2 – 4x – 45/ x^2 – 5x - 36The factors are - (x-3)(x+5)            ... more

(x + 6)^2 = 4(x + 6)^2 = (2)^2Taking squate root of both sides you will getx + 6 = +2x= 2 - 6  Or x = -2 - 6x= - 4   or  x = -8 ... more

First get the denominator same so get - 2( 4p+3)     ( 3p-3)  -------    x  ----------    4q            ... more

2x^2-35 = 15so 2x^2 = 35+15that is 2x^2 = 50so x^2 = 25therefore x = 5 more

X^2 -13x = - 12X^2 - 13 x +12 = 0X^2 - 13x + 12(X - 12) (X - 1)=0So the answer is (X - 12) (X - 1) =0, so X can be 12 or 1. more

L=2.43(8)^0.3326 L=2.43(1.996) L=4.85 is your answer. more

4y+1/(3(-2y+1)/5    =3/5   4y+1/(-2+1)   because 3 on the other side will be cancelled by 3 and 5 will be cancelled 5.... more

We we use the 3 equations we defined earlier - x = # of senior citizen ticketsy = # of children ticketsz = # of adult tickets x+y+z = 70015x+20y+25z =... more

Lets say # of tickets solds for senior citizen = x, children tickets = y and adults = zso equation 1 is : X +y + z = 700equation 2 is : 15x+20y+25z = 15750equation... more

Here is the solution: C(x)=1.4x/100-x 4x(100-x) = 1.4x 400x - 4xsquare = 1.4x Dividing by x 400 - 4x = 1.4 400 - 1.4 = 4x 398.6 = 4x x=398.6/4=99.65... more

It is two variables inequality, so if we want to solve two variables inequality or any two variables equation we need two equations for the value of variables.... more

That's an easy one - Here is how it goes -first remove the squareroot by squaring the entire equation , so you will get x+20-x^2=0. Now multiply both sides... more

The equation is in a fractional format or ratio and proportion; in which case, just do cross-multiplication... more

There are different ways to eliminate the risks and vulnerabilities like: 1.      Read private policy thoroughly Before giving... more

5-Quintuplet 6-Sextuplet 7-Septuplet 8-Octuplet 9-Nanuplet 10-Decaplet 11-Undecaplet 12-Duodecaplet 13-Tredecaplet 14-Quattrodecoplet 15-Quindecaple... more

PROBLEM 1: X^2-3x+2 = (x-1)*(x-2), and x^2-1 = (x+1)*(x-1),So x^2-3x+2/x^2-1  = (x-1)*(x-2)/(x-1)*(x+1). By cancelling the common factor the answer... more

8|x| + 6= 208|x| = 20 - 68|x| = 14|x| = 14/8|x| = 7/4 more

√[49x^12y^4z^8]=√(49x^12)√(y^4)√(z^8)√ value is 1/2 or 0.5 so the equation will become= (49x^12)^1/2 * (y^4)^1/2 *(z^8)^1/2Take square root of... more

In my humble opinion graphs are more informative to analyze the nature of changes in the two quantities. However, equations are needed for problem-solving.... more

In mathematics, a binomial is an expression consisting of two terms connected by a plus sign or a minus sign.  (Bi means "two" and nomial means... more

42 = 2n + 2n+2 + 2n+4   more

1st find x take 6y both sides =     3x = 18 next divide 18 by 3  = 6 so x=6   2nd find y take 3x both sides =       ... more

Hi,You will have to use simultaneous equation to get the asnwer -x + y = 56,    3/8x-6=1/4y           ... more

5/sqrt 3+sqrt 5you cannot rationalize the denominator  because 1,2,3,5,7 are the numbers which have no factorization power.5/3.9681.2600... more

Just as we did for the last problem - find the common factors here - -20x^3*(x-1)/(x-1)*(x-1). Removing the common factors, we get-20x^3/(x-1) , that is... more

(x^2 + 3x - 1)(x^2 - X +2) by mid term breaking (x^2 +2x+x-1)  (x^2 -2x+x +2)   x(x+2) +1(x-1)  x(x-2) +1(x+2)   (x+2)(x+1)        ... more

(6x-1)(3x-4) Multiply 6x with 3x and -4 18x-24x-3x+4                               ... more

I hope the equation is [A+(4/(16/a^2))]*[(2a-8)/(2a+8)][a +(4/ (16/a^2 ))]*[ (2a - 8)/(2a + 8))][a +(4*(a^2/ 16)]* [2(a -4)/2(a + 4)][A+a^2/4]* [(a-4)/(a+4)]Taking... more

(8√[6] + 3√[2])(4√[6] - 5√[2])= (8√[6] x 4√[6] + 8√[6] x(- 5√[2]) + 3√[2]x4√[6] +  3√[2]x(- 5√[2]))= 32√36 - 40√12 + 12√12-15√4... more

[9]+[54]-[3.46]=[59.54] or [59.5] or [60] the last two rounded more

I hope the equation is like this (x^2 – 7x + 12) / (x^2 – 16)First by factorizing (x^2 – 7x + 12) you will get x^2 – 7x + 12= x^2 -3x -4x +12=x(x-3)-4(x-3)=(x-3)(x+4)So... more

(x^2 - 11x +4) - (-2x^2 -2x - 6) - (x^2 + 6x - 5)= x^2 - 11x +4 +2x^2 +2x + 6  - x^2 - 6x + 5= x^2+2x^2- x^2 - 11x+2x- 6x +4  + 6  ... more

F(x) = 9x - 2F(-3) = 9(-3) -2F(-3) = -27 -2F(-3) = -29  >>>answer more

This isn't a very good question. Not Tobe rude or anything like that. You should have the number it was like 9.8 or 0.98.      You... more

(x^4y^6z^12/9^-2x^3y^-8z^-9)= (x^(4-3)y^(6+8)z^(12+9) 9^2)= x^1 y ^14 z^21 81= 81(x y^14 z^21) >>>answer more

1. (X+5)(X+2) 2. 3X(X-2) 3. ax^2+bx+c is the quadratic form  the roots to the eq. Are found by using the quadratic formula x=-b +/_... more

2y=4x-3 y=4x-3/2 y=4/2x-3/2 y=2x-3/2 Gradient=2 2x+y=5 y=5-2x Gradient=-2 more

Your number and the title and the number in your explanation doesn't match up. In the title, the percent would be 4% success, with your explanation, 95%... more

√98-√50-√72Make factors of each value of square root. √98 = √49 x √2 = 7√2 √50 = √25 x √2 = 5√2 √72 = √36 x √2 = 6√2... more

L=2.43 *w^0.3326w = 65 gSo putting the value in the equation you will get L=2.43 *(65)^0.3326L = 2.43 x 4.008L = 7.45 g >> answer more

Y^0.33 (y^0.66+y^1.66)   when you divide 1/3 it is equal to 0.333, when numerator value is in negative and denominator value is positive then the... more

2x-7y =3  ----eq-1-4x + 14y = -9 ------eq-2Multiply equation 1 by 2 you will get4x - 14y = 6 -----eq -3now add Eq 2 in Eq 3 you will get 4x - 14y... more

X + 5y = 4 --- eq---12x - 5y =2-----eq --2Adding both the equations you will getX + 5y = 4 2x - 5y =23x + 0 = 63x = 6x= 2Putting the value of x=2 in equation... more

4x + Y =4  ---eq -12x + 8y = 0 --- eq-2Multiply eq- 2 by 2 you will get4x + 16y = 0  ---eq-3Subtract eq-1 from eq-3 you will get4x + 16y = 0... more

No doubt there is a much quicker way, but the simplest way I do it and always have done it is this:1) Work out 10% by simply moving the decimal point... more

The standard line formula isY = mx+cWhere m is slope x+3y = 123y = -x +12y= 4 - 1/3xGradient perpendicular to line = 3  so y = 3x + c (Where... more

I hope the equation is like this 1/4 = 3 - ((2x-1)/(x+2))1/4 = (3 (x+2) - (2x-1)) / (x+2)(x+2) = 4 (3x + 6 -2x + 1)x+2  = 4 (x +  7)x+2 = 4x... more