What is the discriminant of the quadratic equation minus, 2, x, squared, minus, 4, x, plus, 7, equals, 0−2x 2 −4x+7=0?AnswerMultiple Choice Answers7272minus, 72−724040minus, 40−40
Question
What is the discriminant of the quadratic equation minus, 2, x, squared, minus, 4, x, plus, 7, equals, 0−2x 2 −4x+7=0?AnswerMultiple Choice Answers7272minus, 72−724040minus, 40−40
Solution
The discriminant of a quadratic equation is given by the formula b² - 4ac, where a, b, and c are the coefficients of the quadratic equation ax² + bx + c = 0.
In the given equation -2x² - 4x + 7 = 0, the coefficients are:
a = -2
b = -4
c = 7
Substituting these values into the formula, we get:
Discriminant = (-4)² - 4*(-2)*7 = 16 - (-56) = 16 + 56 = 72
So, the discriminant of the given quadratic equation is 72.
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