Question

(a+b)⁴ binomial expansion

Answer 1

Answer:

$\huge\boxed{Answer\hookleftarrow}$

Method Used :-

$Using  \: (a+b) {}^{2} (a+b) {}^{2} and (a+b+c) {}^{2}$

Expansion :-

$(a + b) {}^{4} \\ = [(a+b) {}^{2} ] {}^{2} \\ = (a {}^{2} +2ab+b {}^{2} ) {}^{2} \\ = (a {}^{2} ) {}^{2} +(2ab) {}^{2} +(b {}^{2} ) {}^{2} +2(a {}^{2} )(2ab) +2(2ab) \\ (b {}^{2} )+2(b {}^{2} )(a {}^{2} ) \\ = a {}^{4} +b {}^{4} +4a {}^{3} b+6a {}^{2} b {}^{2} +4ab {}^{3}$

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