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Which of the statements about the following quadratic equation is true? 6x2 - 8 = 4x2 7x the discriminant is greater than zero, so there are two real roots. the discriminant is greater than zero, so there are two complex roots. the discriminant is less than zero, so there are two real roots. the discriminant is less than zero, so there are two complex roots.

Theresa Perry

in Mathematics

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Eric Morgan on July 9, 2018

6x^2 - 8 = 4x^2 + 7x6x^2 - 4x^2 - 7x - 8 = 02x^2 - 7x - 8 = 0discriminant = b^2 - 4ac, where a = 2, b = -7, and c = -8d = (-7)^2 - 4(2)(-8)d = 49 + 64d = 113the discriminant is greater than zero, so that there are two real roots


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