SOLUTION: The difference of two positive numbers is 6 and the sum of their squares is 90. Find the numbers.

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Question 222042: The difference of two positive numbers is 6 and the sum of their squares is 90. Find the numbers.
Answer by solver91311(24713) About Me  (Show Source):
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Let represent the larger of the two positive numbers. Let represent the smaller of the two positive numbers.

The difference is 6, so:



The larger number squared is: and the smaller number squared is:

And the sum of the two squares is then:



In standard form:



Divide by 2:



Solve for to get the larger number. Subtract 6 to get the smaller. Hint: The quadratic factors. You will get two roots. Exclude the negative root because the problem says you are looking for a positive integer.

John