Can You Solve By Using The Quadratic Formula? Show Complete Solutions.

Quadratic Formula:
[-b +square root(b2-4ac)]/2a & [-b -square root(b2-4ac)]/2a
..
In: 2x² + 9x - 7 = 0
a=2, b=9, c= -7
Put "a", "b" and "c" in quadratic formula, We get:
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[-2+square root(2²-4(2)(-7)]/2(2)
= [-2+square root(4+56)]/4
= [-2+7.75]/4
= [5.75]/4
= 1.44
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And for minus formula: [From here onwards V^--=square root]
[-2+V^--(2²-4(2)(-7)]/2(2)

= [-2-V^--(4+56)]/4

= [-2-7.75]/4

= [-9.75]/4

= -2.44
..
Hence answers are (1.44, -2.44)