Use suitable identities to find the following products :- (3 – 2x) (3 + 2x)

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#### Solution

By using the identity (x + y)(x - y) = x^{2} - y^{2},

(3 – 2x) (3 + 2x) = (3)^{2} - (2x)^{2}

= 9 - 4x^{2}

Concept: Algebraic Identities

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