Question

> ala+b)3 - 3a²b(a+b)​

Answer 1

Answer:

a(a+b)(a²+b²-ab)

Step-by-step explanation:

taking (a+b) common in two terms

=(a+b){a(a+b)²-3a²b}

now using (a+b)²=a²+b²+2ab

=(a+b){a(a²+b²+2ab)-3a²b}

=(a+b){a³+ab²+2a²b-3a²b}

=(a+b){a³+ab²-a²b}

=(a+b)a{a²+b²-ab}

=a(a+b)(a²+b²-ab)

Answer 2

Answer:

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