Question 517428
The difference of the squares of two numbers is 10. 
The difference of the two numbers is 2. What is their sum?
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x^2-y^2 = 10
x-y = 2
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Divide the 1st equation by the 2nd equation to get:
x+y = 5
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Solve the following system:
x-y = 2
x+y = 5
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Add and solve for "x":
2x = 7
x = 7/2
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Substitute for "x" and solve for "y":
x + y = 5
(7/2) + y = 5
y = (10/2)-(7/2)
y = 3/2
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Cheers,
Stan H.
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