Find the product: (2x + 5) × (4x − 3)

Question:

Find the product:
(2x + 5) × (4x − 3)

Solution:

By horizontal method:

$(2 x+5) \times(4 x-3)$

$=2 x(4 x-3)+5(4 x-3)$

$=8 x^{2}-6 x+20 x-15$

$=8 x^{2}+14 x-15$

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