# SOLUTION: how do you get the factor form of n^2 - 3n -18

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 Click here to see ALL problems on Divisibility and Prime Numbers Question 263136: how do you get the factor form of n^2 - 3n -18 Found 2 solutions by stanbon, drk:Answer by stanbon(57967)   (Show Source): You can put this solution on YOUR website!how do you get the factor form of n^2 - 3n -18 --- (n-6)(x+3) ====================== Cheers, Stan H. Answer by drk(1908)   (Show Source): You can put this solution on YOUR website!here we want 2 numbers that add to -3 and multiply to -18. Since the product is - we must use a positive and a negative number. listing the factor pairs of 18, we get 1, 18 2, 9 3, 6 Notice that if 3 were positive and 6 were negative, we get +3 -6 = -3 which is our middle number. we now write 2 binomials as (n - _____)(n - ______) the blanks are waiting for our numbers +3 and -6. PUtting those in we get (n+3)(n-6)