Question

ab-a+b-1= _____________ *
1 point
a. (1-a)(1-b)
b. (1-a)(b-1)
c. (a+1) (b-1)
d. (a-1) (1-b)​

Answer 1

Answer:

c. (a+1)(b-1)

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Answer 2

Answer:

[c] is ans

Step-by-step explanation:

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