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Multiplication of Any Polynomial

Solve : 4x2+...

Question

Solve :
$4 x^{2} + 3 x - 10 = 0$

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Solution

$4 x^{2} + 3 x - 10 = 0$
$4 x^{2} + 8 x - 5 x - 10 = 0$
$4 x (x + 2) - 5 (x + 2) = 0$
$(x + 2) (4 x - 5) = 0$
$x = - 2, \frac{5}{4}$

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