Question

Разложите на множители.
x^3+2x^2+x+2
4x-4y+xy-y^2

Answer 1

x³+2x²+x+2=(x³+2x²)+(x+2)=x² *(x+20+(x+2)=(x²+1)*(x+2)

4x-4y+xy-y²=(4x-4y)+(xy-y²)=4*(x-y)+y*(x-y)=(x-y)*(4-x)