Question

X^2=17+16-7+4????????

Answer 1

x²=17+16-7+4
x²=30
x=±√30
x1=5,477225575051661

x2= -5,477225575051661

Answer 2

Resolução

x² = 17 + 16 + 7 + 4
x² = 30
x = ± √30

S= { x' = √30 ; x" = - √30 }