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

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