Question

factorise 3(x+y)-9(x+y)whole sqare

Answer 1

Answer:

$3(x + y) - 9(x + y) \\ = 3(x + y)(1 - 3) \\ = 3(x + y) \times - 2 \\ - 6(x + y)$

Answer 2

3(x+y)−9(x+y)=3(x+y)(1−3)=3(x+y)×−2−6(x+y)