SOLUTION: The product of two consecutive positive integers is 56. What is the smaller integer?
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Question 994756
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The product of two consecutive positive integers is 56. What is the smaller integer?
Found 2 solutions by
CubeyThePenguin, ikleyn
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Answer by
CubeyThePenguin(3113)
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Using some guessing and checking, we see that the integers are 7 and 8.
Here is a more algebraic approach:
smaller integer = x
x(x+1) = 56
x^2 + x = 56
x^2 + x - 56 = 0
(x + 8)(x - 7) = 0
x is positive, so x = 7.
Answer by
ikleyn(52786)
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This problem/question is to check if you know the multiplication table . . .