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January 26, 2015

January 26, 2015

Posted by **Mary** on Sunday, September 12, 2010 at 5:12pm.

- calculus -
**MathMate**, Sunday, September 12, 2010 at 7:05pmWhen an expression has no real roots, the discriminant is less than zero.

For example,

3x²+kx+2=0

has no real roots when

k²-4*3*2<0

or

k<24

Proceed along the same lines for the given equation.

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