Question

8. Factorise each of the following:
(1) 8a3 + b3 + 12a²b + 6ab2
(iii) 27 -125a - 135a + 225a2
(ii) 8a - b3 - 12a+b + 6ab2
(iv) 64a-27b3 - 144a²b + 108ab2
(v) 27p3
1 9
216 2
p+
+ - P
Gi​

Answer 1

Step-by-step explanation:

By the identity,

$(x + y)^3 = x^3 + y^3 + 3x^2y + 3xy^2 \\ and \\ (x - y) = x^3 + y^3 - 3x^2y - 3xy^2$

We solve further....

I) By the above Identity, we get,

$(2a + b)^3$

II) $(3 - 5a)^3$

IV) $(8a - 3)^3$

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