Question

using the identity(4x + 3y) (4x +5y)

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Answer 1

Answer:

$using \: identity \\ (x + a)(x + b) = {x}^{2} + x(a + b) + ab \\ ({4x})^{2} + 4x(3y + 5y) + (3y) (5y) \\ {16x}^{2} + 32xy + {15y}^{2}$

Step-by-step explanation:

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