Question

Q3 Factorise:
a) 3(a-2b)-4a(a-2b)
b)3a (x+2y)+b(x+2y)
Q4 Factorise by grouping/regrouping:
(a) 15xy - 6x+5y -2
(b) x + xy + 8x+8y​

Answer 1

Answer:

(3a-6b)-(-4a2+8ab)

3a-6b+4a2-8ab

7a3-6b-8ab

Answer 2

Answer:

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

b)(x+2y)(3a+2b)

4.a) 3x(5y-2)+1(5y-2)

= (5y-2)(3x+1)

b) i think the question is wrongly printed. It should be x²

x²+xy+8x+8y

=x(x+y)+8(x+y)

=(x+y)(x+8)