Question

Solve the following quadratic equation by using the quadratic formula.

-2x^2 - 3x + 4 = 0

(Answers are in photo)

10 points!!!
please explain how you got your answer.

Answer 1

B.
`(-3)/(4)`±
`(√(41) )/(4)`

Explanation:

First, substitute the equation into the quadratic formula.

`x=\frac{b+-\sqrt{(b^(2) )-4(a)(c)} }{2a}`

x=
`(-3+-√((3)^2-4(-2)(4)) )/(4)`

Solve for x.

x=
`(-3+-√(9+32) )/(4)`

x=
`(-3+-√(41) )/(4)`

The answer is x=
`-(3)/(4)`±
`(√(41) )/(4)`