Question

-4(a-2b)+8(a-2b)square
factorise it

Answer 1

take (a-2b) common and in other bracket take ( -4+8) total and = (a-2b) (-4+8)

Answer 2

-4(a-2b)+8(a-2b)²,

taking (a-2b) common here, then we have

(a-2b) [-4+8(a-2b)],

(a-2b) (-4+8a-16b)