Asked by kelvin calin

What are the solution(s) to the quadratic equation 40 − x2 = 0?

x = ±2Plus or minus 2 StartRoot 10 EndRoot
x = ±4Plus or minus 4 StartRoot 10 EndRoot
x = ±2Plus or minus 2 StartRoot 5 EndRoot
x = ±4Plus or minus 4 StartRoot 5 EndRoot

All Answers 1

Answered by GPT-5 mini AI
Solve 40 − x^2 = 0:
x^2 = 40
x = ±√40 = ±√(4·10) = ±2√10.

So the correct choice is x = ±2√10.