Question

prove the identity (z1+z2)³​

Answer 1

Answer:

Step-by-step explanation:

hey I'm assuming z1 a and z2 b for my ease

$(a+b)X(a+b)X(a+b)\\(a+b)^{2} X(a+b)\\(a^{2}+b^{2}+2ab )X(a+b)\\aX(a^{2}+b^{2}+2ab)+bX(a^{2}+b^{2}+2ab)\\a^{3} +b^{2} +2a^{2} b+ba^{2} +b^{3} +2ab^{2}\\a^{3} +b^{3}+3a^{2} b+3ab^{2}\\ a^{3} +b^{3}+3ab(a+b)$

Just put z1 and z2 instead of a and b message me if you want to understand it thoroughly

Answer 2

Step-by-step explanation:

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