Asked by BS

Which expression correctly shows p(x)=27x3+45x2−3x−5 factored completely over the integers? (Hint: You will need to use more than one method to complete this problem.)

(3x−5)(9x2−3x+9)
(3x−5)(9x2+3x+9)
(3x+5)(3x+1)(3x−1)
(3x+5)(9x2−1)
Answered by oobleck
almost.
9x^2-1 = (3x)^2 - 1^2 = (3x-1)(3x+1)
Answered by BS
oh okay so I converted the two 3x to far. Thank you for your help!
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