Question

Factorise a²-b²-(a+b)²
Please tell​

Answer 1

Answer:

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

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Answer 2

Answer:

a²-b²-(a+b)²

a²-b²-(a²+b²+2ab

a²-b²-a²-b²-2ab

-2b²-2ab

-2b (b+a)