Question

1) X^2= 0,36
2)2x^2-36=0

Answer 1

x²=0.36
x=+-√0.36
x₁=-0.6
x₂=0.6

2x²-36=0
2x²=36
x²=18
x=+-√18
x=+-3√2
x₁=-3√2
x₂=3√2