Question

$\frac{1}{2} x^{2} + 0,5 = \sqrt{0,25}$

Answer 1

0,5=5/10= 1/2
√0,25=0,5=   5/10=1/2
1/2 x² + 1/2= 1/2
x²+1=1
x²=1-1
x²=0
x=0