Math, asked by tejasashtankar13, 4 months ago

Factorise
ab²+(a-1) b-1

Answers

Answered by XxMissInnocentxX

3

☆Answer

$\sf \bold \red {ab²+(a-1) b-1} \\ = ab(b + 1) - (b + 1) \\ \bold \green{ (ab - 1)(ab + 1)}$

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