Multiply : $(2 x - 3) (5 - 4 x)$

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Solution

A) $(2 x - 3) (5 - 4 x)$
$= 2 x \times 5 - 3 \times 5 - 4 x \times 2 x + 4 x \times 3$
$= 10 x - 15 - 8 x^{2} + 12 x$
$= 22 x - 15 - 8 x^{2}$

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