Question

Factorise the following:

A. 4xy-16
B. xy+2xy-x
C. 2x²-18x+12
D. 5xy+20x-9y-36

Answer 1

A. 4xy-16

=4(xy−4)

B. xy+2xy-x

3xy−x

=x(3y−1)

C. 2x²-18x+12

2x²−18x+12

=2(x²−9x+6)

D. 5xy+20x-9y-36

5xy+20x−9y−36

=(y+4)(5x−9)