Simplify [a+b+c] [a+b-c]
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Answered by
1
Answer:
=a(a+b-c) +b(a+b-c)+c(a+b-c)
=a² +ab-ac+ab+b²-bc+ca+bc-c²
=a² + b² - c² + 2ab
Answered by
1
Answer:
a^2 + b^2 - c^2 + 2ab.
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