Answer
Appendix A - Ex. Set : 59 (Answer)
$ab – 6a + 7b - 42$
$= (b – 6)(a + 7)$
Work Step by Step
Appendix A - Ex. Set : 59 (Solution)
$ab – 6a + 7b - 42$
$= a(b - 6) + 7(b – 6)$ (Factoring out the factors)
$= (b – 6)(a + 7)$ (Factoring out the greatest common factor (GCF))