Question

1.(a+b) (a-b) =
2.(a+b+c)2=

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Answer 1

Answer:

1. (a^2-b^2)

2. a^2+b^2+c^2+2abc

Answer 2

1. (a+b) (a-b) = (a^2-b^3)

2. (a+b+c)2= a^2+b^2+c^2+2abc

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