Solving Quadratic Equations: Quadratic Formula Answers
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In simplest radical form, what are the solutions to the quadratic equation 6 = x2 – 10x?Quadratic formula: x =
A
x = 5
B
x = 5
C
x = 5
D
x = 5
2
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Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which best describes the discriminant and the number of zeros?
A
The equation has one zero because the discriminant is 1.B
The equation has one zero because the discriminant is a perfect square.C
The equation has two zeros because the discriminant is greater than 0.D
The equation has no zeros because the discriminant is not a perfect square.3
In simplest radical form, what are the solutions to the quadratic equation 0 = –3x2 – 4x + 5?Quadratic formula: x =
A
x =
B
x =
C
x =
D
x =
4
A quadratic equation has exactly one real number solution. Which is the value of its discriminant?
A
−1B
0C
1D
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