Question

Решите уравнение х(х^2+4х+4)=3(х+2)

Answer 1

x(x+2)²-3(x+2)=0
(x+2)(x²+2x-3)=0
x+2=0
x=-2
x²+2x-3=0
x1+x2=-2 U x1*x2=-3
x1=-3 U x2=1
 x={-3;-2;1}