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Q: What is the value of the discriminant -5x2-5x plus 18 equals 0?

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Using the discriminant for a quadratic equation the value of k works out as plus or minus 12.

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The discriminant of a quadratic ax2 + bx + c is b2 - 4ac; thus: the discriminant of -9x2 + 6x + 14 is 62 - 4 x -9 x 14 = 540

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A discriminant that is less than zero.

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