English, asked by maphui, 7 months ago

Simplify : (a+b+c)(a+b-c)

Answers

Answered by chinmaya44

1

Explanation:

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

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

=a^2+ab-ac+ab+b^2-bc+ac+bc-c^2

=a^2+b^2-c^2+2ab

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