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Mathematics
Hillary Casey
9 June, 21:54
Factor. x2+3x-18
Enter your answer in the parentheses
x2+3x-18 = () ()
+4
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Jaidyn Whitney
10 June, 00:23
0
Since this is simple integer factors. For a quadratic of the form ax^2+bx+c, there will be two values, j and k, which satisfy to conditions:
jk=ac=-18 and j+k=b=3, so j and k must be 6 and - 3
So factored this is: (x+6) (x-3)
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Rodolfo Hurley
10 June, 00:50
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X^2 + 3x - 18
2 numbers that multiplied give you - 18
Those same 2 numbers have to add up to 3
6 x - 3 = - 18
6 + - 3 = 3
(X + 6) (x - 3)
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