Math, asked by 9760anisha2006, 1 year ago

Factorise: ab-a-b+1. Please explain it too.

Answers

Answered by 8171402510

6

Step-by-step explanation:

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

(1-a)(1-b)=ab-a-b+1

Answered by hammy32

7

a(b-1)-1(b-1)

(b-1)(a-1)

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