SOLUTION: y=2x x^2+y^2=15 find the solutions to the systems of nonlinear equations

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Question 262246: y=2x
x^2+y^2=15
find the solutions to the systems of nonlinear equations
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
y=2x
x^2+y^2=15
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Sub for y in the 2nd eqn
x^2 + 4x^2 = 15
x^2 = 3
(sqrt(3),2sqrt(3))
(-sqrt(3),-2sqrt(3))