SOLUTION: Xsq + Ysq = 9. X + Y = 2. Give two answers for X & Y

Question 758206: Xsq + Ysq = 9. X + Y = 2. Give two answers for X & Y
Answer by kmadison(20) (Show Source): You can put this solution on YOUR website!
2 equations, 2 unknowns:

Now plug into the other equation:
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Expanding the 2nd portion:

Now combine like terms and subtract 9 from both sides:

From here we use the quadratic formula to determine the 2 solutions for X:

From the formula we get 2 solutions for X: and
Plug these into and you will get your solutions for Y.
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