SOLUTION: The product of two consecutive numbers equals 20. What are the two numbers?

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Question 588440: The product of two consecutive numbers equals 20. What are the two numbers?
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
4,5 or -4,-5. You can do this by simple guess-and-check (by knowing that 20 = 4*5) or do x(x+1) = 20, solve for x.