Question

factorise 7+10(2x-3y)-8(2x-3y)²​

Answer 1

Step-by-step explanation:

$7 + 10(2x - 3y) - 8(4 {x }^{2} + 12xy - 9 {y}^{2} )$

$7 + 20x - 30y - 32 {x}^{2} - 96xy + 72 {y}^{2}$

$32 {x}^{2} - 72 {y}^{2} + 96xy - 20x + 30y - 7$