X^3+8y^3-2x^2y-4xy^2 разложите ** многочлены

Question

X^3+8y^3-2x^2y-4xy^2 разложите на многочлены

Answer 1

X³+8y³-2x²y-4xy²=x³-2x²y+8y³-4xy²=x²(x-2y)-4y²(x-2y)=(x-2y)·(x²-4y²)=
=(x-2y)·(x-2y)·(x+2y)=(x-2y)²·(x+2y);