Question

What are the solution(s) to the quadratic equation 40-x^2=0?

Answer 1

2sqrt =10 this should be te answer you looking for

Answer 2

40 - x^2 = 0...subtract 40
-x^2 = -40....multiply both sides by -1
x^2 = 40
x = (+ - ) sqrt 40
x = (+ - ) sqrt 4 * 10
x = (+ - ) 2 sqrt 10
x = 2 sqrt 10, and x = -2 sqrt 10