How do you factor the expression $21 x^{2} - 22 x - 8$ $21x^2 - 22x - 8$ ?

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How do you factor the expression $21 x^{2} - 22 x - 8$ $21x^2 - 22x - 8$ ?

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Answer 1 · 2016-03-05T07:27:42

$= (3 x - 4) (7 x + 2)$ $=(3x-4)(7x+2)$

Explanation:

$21 x^{2} - 22 x - 8$ $21x^2-22x-8$
$= 21 x^{2} - 28 x + 6 x - 8$ $=21x^2-28x+6x-8$
$= 7 x (3 x - 4) + 2 (3 x - 4)$ $=7x(3x-4)+2(3x-4)$
$= (3 x - 4) (7 x + 2)$ $=(3x-4)(7x+2)$

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How do you factor the expression $21 x^{2} - 22 x - 8$ $21x^2 - 22x - 8$ ?

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How do you factor the expression $21 x^{2} - 22 x - 8$ $21x^2 - 22x - 8$ ?