Factorise:
$21 x^{2} + 5 x - 6$

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Solution

Now,

$21 x^{2} + 5 x - 6 = 21 x^{2} + (14 - 9) x - 6 = 21 x^{2} + 14 x - 9 x - 6 = 7 x (3 x + 2) - 3 (3 x + 2) = (3 x + 2) (7 x - 3)$

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Similar questions

21 x^{2} - 31 x + 8

27 x^{3} - 21 x^{2} + 15 x^{4}

Factorise:

$21 x^{2} - 2 x + \frac{1}{21}$

Factorise:
$x^{2} + 5 x + 6$

6 x^{2} + 5 x - 6

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