Question

factorise 9x²+27x+20
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Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

(3x+5)(3x+4)

Step-by-step explanation:

$9 {x}^{2} + 27x + 20 = 9x {}^{2} + 15x + 12x + 20 \\ = 3x(3x + 5) + 4(3x + 5) \\ = (3x + 5)( 3x + 4)$