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The product of a number and 2 less than the number is 15. Find the number A) -3 or 5 B)-2 or 6 C)-6 or 2 D) -5 or 3
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The product of a number and 2 less than the number is 15. Find the number

A) -3 or 5
B)-2 or 6
C)-6 or 2
D) -5 or 3

User Sergio Basurco
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1 Answer

4 votes
x(x-2) = 15 where x = the unknown number
If you test all the answers in that equation, both x values in answer A yield 15, so the answer is A
User Ballard
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