Question

Using identity a2 – b2 = (a + b) (a – b) find the product –
(i) (2a + 7) (2a – 7)
(ii) (p2 + q2) (p2 – q2)

Answer 1

Answer:

Explanation:

i) (2a + 7) (2a - 7)

identity : a² - b² = (a + b) (a - b)

(2a)² - (7)²

= 4a² - 49

Hope it helps!!

Answer 2

Answer:

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Explanation: