The question says to prove that x^2+2kx-5 has two real roots

That means I need to assume that its discriminant is >0. Which is k^2+5. k^2+5 has no real roots, therefore there is no way I can prove the equation has real roots.

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- September 12th 2012, 02:04 PMMukilabRe: Is this the discriminate?
- September 12th 2012, 02:06 PMMukilabRe: Is this the discriminate?
Please delete this thread.