Mathematics

Mathematics

Problem

9. Verify : (i) x3+y3=(x+y)(x2−xy+y2)x^{3}+y^{3}=(x+y)\left(x^{2}-x y+y^{2}\right) (ii) x3−y3=(x−y)(x2+xy+y2)x^{3}-y^{3}=(x-y)\left(x^{2}+x y+y^{2}\right)

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