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Mathematics 9 Online
OpenStudy (anonymous):

Find the larger of two positive real numbers that differ by 3 and have a product of 9

OpenStudy (freckles):

Let's call the numbers x and y. The members should have a difference of 3. Can you translate that into mathematical symbols?

OpenStudy (anonymous):

x-y=3

OpenStudy (freckles):

Great so you need to solve this system x-y=3 xy=9

OpenStudy (freckles):

Solve the first equation for x and then use that in the second equation You will see a quadratic

OpenStudy (anonymous):

so the larger is 4.85?

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