Question

factorise 1-2ab-a2-b2

Answer 1

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Answer 2

hey dear

here is your answer

Solution

equation is

1 - 2ab - a^2 - b^2

1 - ( 2ab - a^2 - b^2)

we use identity to factorise

< identity is a^2 - b ^2 ( a+b ) ( a - b) >

so

1^2 - ( a^2 - b ^2)

so

hence your factor is

( 1 + a + b) , ( 1- a - b)

hope it helps

thank you