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

1 Answer

May 27, 2015

Since $4 \times 5 = 20$ $4xx5 = 20$ and $4 + 5 = 9$ $4+5 = 9$

$x^{2} + 9 x + 20 = (x + 4) (x + 5)$ $x^2+9x+20 = (x+4)(x+5)$

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