Math, asked by bhatthet2007, 5 hours ago

Factorise: ab-a-b+1 pls send fast

Answers

Answered by spremjitsinghmartins

0

Answer:

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

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

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