How do you factor $x^{2} - 9 x + 20$ $x^ { 2} - 9x + 20$ ?

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Answer 1 · 2016-10-20T14:27:49

x = 5 , 4

$x^{2}$ $x^2$ - 9x + 20

= $x^{2}$ $x^2$ -5x - 4x +20

= x(x - 5) -4(x - 5)

= (x - 5)(x - 4)

∴ x = 5 , 4

How do you factor x2−9x+20x^ { 2} - 9x + 20?