Question

please tell plz plz​

Answer 1

Answer:

the answer is (b-1)(a-1)

sol:-b×a-1-a+1

= ab-1-a+1

pls mark as brainliest and follow please

Answer 2

ab - b - a + 1

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

=(b-1)(a-1)

2nd option is correct .