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Earn +20 ptsQ: Factor x2 plus 3x-40
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What binomial is a factor of this trinomial x2 plus 8x plus 16?
x + 4
Factor x2 plus 5x-120?
x2 + 5x - 120 can not be factored.
Factor by grouping x3 - x2 plus 40x -40?
(x2 plus 40) (x minus 1)
How do you factor x2 plus 8x plus 15?
x2 + 8x + 15 = (x + 3) (x + 5).
Factor x2 plus 9 plus 20?
x2 + 9 + 20 = x2 + 29, and can not be factored.I assume though that you mis-wrote your question, and what you in fact want to ask is how to factor x2 + 9x + 20.In that case, the answer is (x + 4)(x + 5).
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