Question

Ajuta ti ma urgent va rog dau 21 puncte

Answer 1

(x^2+2x)^2=x^4
x^4+4x^3+4x^2=x^4
4x^3+4x^2=0
x^2*(x+1)=0
x1=x2=0   (x+1)=0 x3=-1
b)($\frac{1}{x} +2)$²=
$\frac{1}{ x^{2} } +2*2 \frac{1}{x} +4$=
$\frac{1}{ x^{2} } + \frac{4}{x} +4$.

Answer 2

Rezolvarea o ai pe foaie!Succes!