Question

factorise
1). 7x-21
2). 2x+2y+2z

Answer 1

Hey mate!!!

HERE IS THE ANSWER

$1)7(x - 3) \\ 2)2(x + y + z)$
Hope it helps to you.

Answer 2

7(x-3(
2(x +y+ z ( the last bracket is in oppsit direction