Question

timed problem
score: 0/10 current time: 1.6
which equation is equivalent to the given equation?
0 = -2x² - 8x + 42
answer
2x² + 8x - 42 = 0
2x² - 8x - 42 = 0
2x² + 8x + 42 = 0
2x² - 8x + 42 = 0

Explanation:

Step1: Multiply both sides by -1

Given equation: \(0 = -2x^2 - 8x + 42\)
Multiply both sides by \(-1\):
\(0\times(-1)=(-2x^2 - 8x + 42)\times(-1)\)
Simplify: \(0 = 2x^2 + 8x - 42\)
Rearrange to standard form: \(2x^2 + 8x - 42 = 0\)

Answer:

\(2x^2 + 8x - 42 = 0\) (the first option)