15x^2 8x 7 Splitting the middle term: ⇒ 15x^2 15x+7x 7 ⇒ 15x(x 1)+7(x 1) ⇒ (15x+7)(x 1) . ...

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Quadrilaterals

Solve : 15x...

Question

Solve : $15 x^{2} - 8 x - 7$

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Solution

$15 x^{2} - 8 x - 7$
Splitting the middle term:-
$\Rightarrow 15 x^{2} - 15 x + 7 x - 7$
$\Rightarrow 15 x (x - 1) + 7 (x - 1)$
$\Rightarrow (15 x + 7) (x - 1)$ .

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