Question

x的三次方加x的平方y加xy的平方加y的三次方怎么因式分解

Answer 1

x³+x²y+xy²+y³
=x²(x+y)+y²(x+y)
=(x+y)(x²+y²)

Answer 2

X^3+X^2y+xy^2+y^3
=X^2(X+Y)+(X+Y)Y^2
=(X+Y)(X^2+Y^2)