Question

Expand using suitable identity (4x +5)*(4x - 7)

Answer 1

Answer:

$16 {x}^{2} - 8x - 35$

Step-by-step explanation:

$(4x + 5) \times (4x - 7)$

$4x(4x - 7) + 5(4x - 7)$

$16 {x}^{2} - 28x + 20x - 35$

$16 {x}^{2} - 8x - 35$

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