Question

1+2abc-(a2+b2) factorisation​

Answer 1

Answer:

that's your answer

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Answer 2

= 1 + 2ab - a^2 - b ^2

= 1 - ( a - b ) ^2

= [ 1 + a - b ] • [ 1 - a + b ]

The term should be 2ab not 2 abc.

Hope this helps....

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