Using the '/' sign as 'over', Using ' ^ ' sign to signal a power such as x^2 is x squared. To simplify, multiply (1 / x + h) by (x / x) which is a value of one. Then multiply 1/x by (x+h) / (x+h), another value of one. By doing so, you create … Read more

An equation has an equal sign such as y = x+ 8 while an expression does not (example: X+8). Therefore, equations can be solved while expressions can only be simplified.