Question

factorise a^2+2ab+b^2-c^2​

Answer 1

Answer:

${(a + b)}^{2} - {c}^{2} \\ = (a + b + c)(a + b - c)$

As (a+b)^2 = a^2+b^2+2ab

And a^2-b^2=(a+b)(a-b)

Answer 2

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