Question

Разложите на множители :
x^3-x^2+x^2y+x-xy+y

Answer 1

x³-x²+x²y+x-xy+y=(x³+x²y)-(x²+xy)+(x+y)=x²*(x+y)-x*(x+y)+(x+y)=(x+y)*(x²-x+1).