Question

Solve 2x2 + 3x = 4. Which of the following are the solutions to the nearest hundredth?

A. 2.35 and 0.85
B. 2.35 and –0.85
C. –2.35 and 0.85
D. –2.35 and –0.85

Answer 1

the answer is C. -2.35 and 0.85

Explanation:

1.
`2x^(2)`+3x-4.=0

2. x=
`(-3+√(9+8x4.) )/(4)`,
`(-3-√(9+8x4.) )/(4)`

3. 0.850781, -2.350781