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What is the largest integer value of m such that the equation 3x^2 - mx + 21 = 0 has no real solutions?

 Aug 1, 2021
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For this to occur, the discriminant of the quadratic formula,  b^2 - 4ac , must be <0

 

(-m)^2 - 4 (3)(21) <0

m^2 < 252

m<15.87              So the answer would be ________

 Aug 1, 2021

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