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  • 01-06-2019
  • Mathematics
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(a + b - c)(a + b + c)

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mathmate
mathmate mathmate
  • 01-06-2019

Step-by-step answer:

Assuming you would like to have the different ways to express the given expression.

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

=( (a+b) - c) ( (a+b) + c)    expand by difference of squares

= (a+b)^2 -c^2                 or expand completely

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

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