1) x²=13
x=±√13
x1= √13, x2= -√13
2) x²=100
x=±√100
x1= 10, x2= -10
3) √x=36
(√x)²=36²
IxI=1296
x=1296
1) x²=13
x=±√13
x1= √13, x2= -√13
2) x²=100
x=±√100
x1= 10, x2= -10
3) √x=36
(√x)²=36²
IxI=1296
x=1296