Question
Factorise : $8(3a - 2b)^2 - 10(3a - 2b)$
✓
Answer
$8(3a - 2b)^2 - 10(3a - 2b)$
$= (3a - 2b)[8(3a - 2b) - 10]$
$= (3a - 2b)2[4(3a - 2b) - 5]$
$= 2(3a - 2b)(12a - 8b - 5)$
$= (3a - 2b)[8(3a - 2b) - 10]$
$= (3a - 2b)2[4(3a - 2b) - 5]$
$= 2(3a - 2b)(12a - 8b - 5)$
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