SOLUTION: Five years ago, jay was 7 years more than one half as old as fred. the product of their ages is 696. find their present ages

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Question 1170470: Five years ago, jay was 7 years more than one half as old as fred. the product of their ages is 696. find their present ages
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Jay, 24
Fred, 29

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system%28j-5=7%2B%281%2F2%29%28f-5%29%2Cjf=696%29
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2j%5E2-19j-696=0

discriminant, 5929, or 77%5E2;

j=%2819%2B77%29%2F4
highlight%28j=24%29
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highlight%28f=29%29, f=696%2F24