Question

Solve the following equation.
x² + 64=0

Answer 1

x=8

=>x^{2} =-64\\

=> \sqrt{x^{2} } =\sqrt{64} \\\\

=> x=8

Explanation:

Answer 2

x=-8

Explanation:

square root 64 which is 8

-8^2 = -64

-64 -64 = 0

-8^2 + 64 = 0