Q. 2 E

Using a suitable identity, find each of the following products:

(3x + 2) (3x – 2)

Answer :

(a2 – b2) = (a – b) × (a + b)


(3x + 2) (3x – 2) = (3x)2 – (22)


(3x + 2) (3x – 2) = (9x2 – 4)


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