Find the following products: (3x + 5)(3x + 11) - Vidyadip

Question

Find the following products: $(3x + 5)(3x + 11)$

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Answer

Here, we will use the identity $(x + a)(x + b) = x^2+ (a + b)x + ab.$
$(3x + 5)(3x + 11)$
$= (3x)^2+ (5 + 11)(3x) + 5 × 11$
$= 9x^2+ 48x + 55$

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