Question

(a+b)⁴ binomial expansion

Answer 1

`\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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