SOLUTION: if the sum of the number and two is multiplied by the difference of the number and 5, the product is 18. what is the number?

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Question 1119220: if the sum of the number and two is multiplied by the difference of the number and 5, the product is 18. what is the number?




Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
(x+2)(x-5)=18
-
x%5E2-3x-10-18=0
x%5E2-3x-28=0
%28x-7%29%28x%2B4%29=0


The number could be -4 or +7.