Math, asked by vedprakash28, 6 months ago

The factorisation of ab - a - b+ 1 is

Answers

Answered by manushrilead

1

Answer:

ab - a - b + 1

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

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

(1-a)(1-b)

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