Q 3 Factorise completely a) 9a(x – 3b ) - 4 (x – 3b)

b) 5a(2b – 3 ) - 4 (2b – 3)

c) x( 2h-k )+ 3y ( k – 2h )

a) (9a-4)(x-3b)

b) (5a-4)(2b-3)

c) = x(2h-k)-3y(2h-k)

= (x-3y)(2h-k)

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.