Find the product:
(4x − 3)(2x + 5)

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Solution

$(4 x - 3) (2 x + 5) = 4 x \times (2 x + 5) - 3 \times (2 x + 5) = (4 x \times 2 x + 4 x \times 5) - (3 \times 2 x + 3 \times 5) = 8 x^{2} + 20 x - 6 x - 15 = 8 x^{2} + 14 x - 15$

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