Question

(x+y)(x2-xy+y2)+(x-y) (x2+xy+y2)​

Answer 1

(x + y) (x² - xy + y²) + (x - y) (x² + xy + y²)

x³-x²y+xy²+x²y-xy²+y³ + x³+x²y+xy²-yx²-xy²+y³

2x³+2y³

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