Factorise: (x + y)(2x + 5) − (x + y)(x + 3)
Question:
Factorise:
(x + y)(2x + 5) − (x + y)(x + 3)
Solution:
We have:
$(x+y)(2 x+5)-(x+y)(x+3)=(x+y)\{(2 x+5)-(x+3)\}$
$=(x+y)(2 x+5-x-3)$
$=(x+y)(x+2)$