n2 + 9n + 18 = (n + 6)(n + 3)
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If: n2 = 19 Then: n = the square root of 19.
n2 = 10n + 56 Subtract (10n + 56) from each side: n2 - 10n - 56 = 0 Now you have something on the left side that you can factor: (n - 14) (n + 4) = 0 n = +14 n = - 4
n2 + 7n - 44 (n + 11)(n - 4)
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n x n2 = n3