Question

Factorise:
a3 – 4a2 + 12 – 3a
a3x – x4 + a2x2 – ax3
y2 + 8zx – 2xy – 4yz
1+a+ac+a2c
Xy-pq+qy-p
3+23Z-8Z2

Answer 1

Step-by-step explanation:

1.a^3-4a^2+12-3a

=a^2(a-4)-3(a-4)

=(a-4)(a^2-3)

2. a^3x-x^4+a^x^2-a^3

=a^3+a^2x^3-x^4-a^3

=a^2x(a+x)-x^3(a+x)

=(a+x)(a^2-x^3)

3. y^2+8zx-2xy-4yz