the sum of two numbers is 18 and thier product is 65. find the numbers.
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Expert's answer
2013-07-11T10:27:18-0400
Let the first number is a, the second is b. So we have: a+b=18, ab=65 From the first equation a=18-b. Substituting it instead of a into the second equation we obtain: (18-b)b=65 18b-b^2=65 b^2-18b+65=0 Solving it for b we get: b=5 or b=13. So for a we have the next options: a=13 or a=5 Answer: the umbers are 13 and 5.
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