Question

Factorise: ab + a + b + 1​

Answer 1

Answer:

Ab+a+b+1

..so we will Take the LCM And then their index notation will be verified and we will get the answer ☺️☺️☺️

Step-by-step explanation:

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Answer 2

Answer:

By taking a and -1 as the common factor we get,

ab –a –b +1

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

= (b-1) (a-1)

Step-by-step explanation:

By taking a and -1 as the common factor we get,

ab –a –b +1

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

= (b-1) (a-1)