Question

Factorise each of the following: (2 + 3a)² – 36a² using identites​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

We know the identity that

a² - b² = ( a + b) ( a - b)

Therefore

(2+3a)² - 36a²

= (2+3a)² - (6a)²

= (2+3a+6a) (2+3a-6a)

= (2+9a) (2-3a)

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