SOLUTION: a number increased by 1 is multiplied by the same number decreased by 2 to give a result of 4. what is the number?

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Question 908124: a number increased by 1 is multiplied by the same number decreased by 2 to give a result of 4. what is the number?
Answer by JulietG(1812) About Me  (Show Source):
You can put this solution on YOUR website!
(x+1) * (x-2) = 4
x%5E2-x-2 = 4
x%5E2 -x -6 = 0
(x-3)(x+2)= 0
x = 3, -2