Question

the factorisation of ab-a-b+1 is​

Answer 1

Answer:

(a - 1)(b - 1)

Step-by-step explanation:

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

(a - 1)(b - 1)

Hope this will be helpful for you dear..!!

Answer 2

Answer:

( b - 1 ) ( a - 1 )

is ur answer ....