How do you solve -x^2 - 2x + 2 =0 using the quadratic formula?

1 Answer
Waleed A.
Oct 15, 2015

x = -3, x = 1

Explanation:

-x^2 -2x +2 = 0

Standard Quadratic Equation:

ax^2 + bx + c = 0

a is the constant with x to the power 2.
b is the constant with x to the power 1
c is the constant.

In the given Equation:

a = -1
b = -2
c = 3

Standard Quadratic Formula:

(-b+-sqrt(b^2 - 4(a)(c))) / (2(a))
(-(-2) +-sqrt((-2)^2 - 4(-1)(3))) / (2(-1))
(2+-sqrt((4 + 12)) ) / -2
(2+-sqrt(16)) / -2
(2+-4) / -2
(2 + 4) / -2, (2 - 4) / -2
6 / -2, -2 / -2
x = -3, x = 1

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