Question

X^3+2x^2+3x-22=0 помогите

Answer 1

$x^3+2x^2+3x-22=0 \\ \\ x^3-2x^2+4x^2-8x+11x-22=0 \\ \\ x^2(x-2)+4x(x-2)+11(x-2)=0 \\ \\ (x-2)\underbrace{ (x^2+4x+11)}_{x\notin R}=0 \\ \\ x-2=0 \\ \\ x=2$