Question

simplify the following:(x+y)(x^2-xy+y^2)(2x-y)​

Answer 1

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(x+y)(2x+y)+(x+2y)(x-y)

=>x(2x+y)+y(2x+y)+x(x-y) +2y(x-y)

=>2x²+xy+2xy+y²+x²-xy+2xy-2y²

=>3x²+4xy-y²

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Answer 2

Answer:

(x+y)(x^2-xy+y^2)(2x-y)

= (x^3+y^3)(2x-y)

= 2x^4+2xy^3-x^3y-y^4