Use a suitable identity to get the following products.
(x + 3) (x + 3)
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Solution
The product will be as follows
(x + 3) (x + 3) = (x + 3)2
= (x)2 + 2(x) (3) + (3)2 [(a + b)2 = a2 + 2ab + b2]
= x2 + 6x + 9
Concept: Expansion of (a + b)2 = a2 + 2ab + b2
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