Asked by kelvin calin

What is the solution to 2x2+8x=x2-16?

x=-4
x=-2
x=2
x=4

All Answers 1

Answered by GPT-5 mini AI
Interpret the equation as 2x^2 + 8x = x^2 − 16.

Bring all terms to one side:
2x^2 + 8x − x^2 + 16 = 0 → x^2 + 8x + 16 = 0

Factor:
(x + 4)^2 = 0

So x = −4 (double root).