Question

Factorise a^2(b+c)-(b+c)^3

Answer 1

Solution :

a²(b+c)-(b+c)³

= (b+c)[ a² - (b+c)²]

= (b+c)(a+b+c)[a-(b+c)]

= (b+c)(a+b+c)(a-b-c)

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