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GMATBusters
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Yes answer is C.

Thanks

KS15
gmatbusters
What is the value of x^2 + 4y ?
(1) x = 3
(2) x^2 + 2y = 17

I think answer should be C. Can you please confirm?

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why B is not sufficient?
x^2 +2y=17, here only x^2=9 satisfies the equation, which gives the value of y as 4.
we are not worried about the sign of x, as it is square
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why not B is sufficient?
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