Question

x^2+9x+20
(x+5)(x-4)
(x+5)(x+4)
(x-5)(x-4)
none of these

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Answer 1

Answer:

(x-5)(x-4)

Step-by-step explanation:

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Answer 2

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x²+9x + 20

=x²+ 4x + 5x +20

=x ( x +4) + 5 ( x+4)

=(x+4) (x+5)

$\huge \boxed { \underline{ \purple{(x + 4)} \blue{(x + 5)}}}$