Question

1. Factorise the following:
(a) (3p + 4q)2 + 2(3p + 4q) - 15
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Answer 1

Answer:

Solution:

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We know that,

(x+y)² - (x-y)² = 4xy

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Here,

x = 3p , y = 4q

Now ,

pqa= (3p+4q)²-(3p-4q)²

= 4×(3p)×(4q)

= 4×3×4×pq

= 48pq

Therefore,

a = 48

••••

Step-by-step explanation: