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If m is a real number and 2x^2+mx+18 has two distinct real roots, then what are the possible values of m? Express your answer in interval notation.

 Oct 24, 2020
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discriminant will have to be POSITIVE to have 2 real roots

 

b^2 - 4ac > 0

m^2 - 4(2)(18) >0

m^2 > 144

m > 12 

m < -12                  you can write it in interval notation......right?

 Oct 25, 2020

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