please Solve the problem please fast
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Using Identities ;-
(a- b) (a² + ab + b²) = a³ - b³
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Answer:
=a(a^2+ab+b^2)-b(a^2+ab+b^2)
=a^3+a^2b+ab^2-ab^2-ab^2-b^3
=a^3+a^2b-ab^2-b^3
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