Question

Разложите на множители
а)х^3+2x^2+x+2
б)4x-4y+xy-y^2

Answer 1

а)х^3+2x^2+x+2=x²(x+2)+(x+2)=(x+2)(x²+1)
б)4x-4y+xy-y^2=4(x-y)+y(x-y)=(x-y)(4+y)