Question

What is X^2+X^2=12^2

Answer 1

x =±6√2

Explanation:

x^2 + x^2 = 12^2

Combine like terms

2x^2 = 144

Divide each side by 2

2/2x^2 = 144/2

x^2 = 72

Take the square root of each side

√x^2 = ±√72

x = ±√2*36

x =±6√2