Question

Factorise the following:(i)-32(x+y)2-2x-2y

Answer 1

Solution:

-32(x+y)² -2x-2y

= -2 × 16(x+y)² +1 [-2(x+y)]

= -2(x+y)[ 16(x+y)+1]

Or

= -2(x+y)(16x+16y+1)

••••

Answer 2

Xy+6(x+y)+36

(x+6)(y+6)