THE DISCRIMINANT

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Use the discriminant to describe the roots of each equation. Then select the best description. 2m^2 + 3 = m

imaginary root

Use the discriminant to describe the roots of each equation. Then select the best description. 7x^2 + 3 = 8x

imaginary root

Use the discriminant to describe the roots of each equation. Then select the best description. x^2 - 6x + 12 = 0

imaginary root

Use the discriminant to describe the roots of each equation. Then select the best description. 3x^2 - 2 + 7x = 0

real and irrational root

Use the discriminant to describe the roots of each equation. Then select the best description. x^2 - 5x - 4 = 0

real and irrational root

Which of the following statements are true of the discriminant?

The discriminant is b 2 - 4ac in the quadratic formula. The discriminant is the radicand of the quadratic formula. The discriminant is the value under the radical in the quadratic formula.

Use the discriminant to describe the roots of each equation. Then select the best description. x^2 - 5x + 7 = 0

imaginary root

Use the discriminant to describe the roots of each equation. Then select the best description. 2 = x^2 + 5x

real and irrational root

Use the discriminant to describe the roots of each equation. Then select the best description. x^2 + 9x + 14 = 0

real and rational root

Use the discriminant to describe the roots of each equation. Then select the best description. 7x^2 + 1 = 5x

imaginary root

Use the discriminant to describe the roots of each equation. Then select the best description. 3x^2 - 10 = 0

real and irrational root

Use the discriminant to describe the roots of each equation. Then select the best description. 2x^2 + 7x + 6 = 0

real and rational root

Use the discriminant to describe the roots of each equation. Then select the best description. 6x^2 + 13x + 6 = 0

real and rational root

Use the discriminant to describe the roots of each equation, selecting all answer options that apply. 16x^2 + 8x + 1 = 0

real and rational root double root

Use the discriminant to describe the roots of each equation, selecting all answer options that apply. x^2 - 4x + 4 = 0

real and rational root double root

Use the discriminant to describe the roots of each equation, selecting all answer options that apply. x^2 - 6x + 9 = 0

real and rational root double root


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