Question

factorise ab square+b(a-1)-1=?

Answer 1

Answer:

( b + 1 ) ( ab - 1 )

STEP BY STEP EXPLANATION:

ab² + b ( a - 1 ) - 1

STEP 1 = ab² + ba - b - 1

STEP 2 = ab ( b + 1 ) - 1 ( b + 1 )

STEP 3 = ( b + 1 ) ( ab - 1 )

Hence, the answer ab² + b ( a - 1 ) - 1 = ( b + 1 )( ab - 1 )