Simplify $$2\sqrt{32}$$ .

Simplified form is $$8\sqrt{2}$$ .

Simplified form is $$4\sqrt{8}$$ .

Simplified form is $$16\sqrt{2}$$ .

Simplified form is $$2\sqrt{16}$$ .

Simplify $$5\sqrt{8} \cdot \sqrt{10}$$ .

$$5\sqrt{80}$$ = 5 \cdot $$4\sqrt{5}$$ = $$20\sqrt{5}$$ .

$$5\sqrt{80}$$ = 5 \cdot 2 $$\sqrt{10}$$ = 10 $$\sqrt{10}$$ .

$$5\sqrt{80}$$ = 5 \cdot $$8\sqrt{2}$$ = $$40\sqrt{2}$$ .

$$5\sqrt{80}$$ = 5 \cdot 16 $$\sqrt{1}$$ = 80.

Find the discriminant of the quadratic equation $$x^2 + 8x + 24 = 10$$ and then state the number of solutions.

Discriminant = 0, one real solution

Discriminant > 0, two real solutions

Find the discriminant of the quadratic equation $$6x^2 + 7x - 5 = 0$$ and then state the number of solutions.

The discriminant is 109, and there are 2 real solutions.

The discriminant is 109, and there is 1 real solution.

The discriminant is -109, and there are 2 complex solutions.

The discriminant is 109, and there are no real solutions.

Find the discriminant of the quadratic equation $$-6b^2 + b + 7 = 0$$ and then state the number of solutions.

The discriminant is -167, and there are no real solutions.

The discriminant is 1, and there are 2 solutions.

The discriminant is 1, and there is 1 solution.

The discriminant is -167, and there is 1 real solution.

Find the discriminant of the quadratic equation $$7v^2 - 2v + 5 = 0$$ and then state the number of solutions.

The discriminant is -136, and there are no real solutions.

The discriminant is 136, and there are two real solutions.

The discriminant is 0, and there is one real solution.

The discriminant is 136, and there are no real solutions.

Find the discriminant of the quadratic equation $$9n^2 + 7n + 5 = 0$$ and then state the number of solutions.

Discriminant = -71, No real solutions

Discriminant = 71, Two real solutions

Discriminant = 71, One real solution

Discriminant = -71, Two real solutions

Find the discriminant of the quadratic equation $$-8x^2 + 8x = 2$$ and then state the number of solutions.

Discriminant: 16, Number of solutions: 2

Discriminant: 0, Number of solutions: 1

Discriminant: -16, Number of solutions: 0

Discriminant: 64, Number of solutions: 2

Solve the quadratic equation $$x^2 = 81$$ using any method. State the method used to solve.

x = 9 and x = -9 (Method: Square Root)

x = 81 and x = -81 (Method: Factoring)

x = 9 and x = -9 (Method: Factoring)

x = 81 and x = -81 (Method: Square Root)

Solve the quadratic equation $$x^2 - 225 = 0$$ using any method. State the method used to solve.

x = 15 or x = -15 (Quadratic Formula)

x = 15 or x = -15 (Completing the Square)

End of Chapter 9 Study Guide

Authored by Sarah Heller

Mathematics

9th Grade

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

m(m - 16) = 64

(m + 8)(m - 8) = 0

MULTIPLE CHOICE QUESTION

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MULTIPLE CHOICE QUESTION

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MULTIPLE CHOICE QUESTION

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MULTIPLE CHOICE QUESTION

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MULTIPLE CHOICE QUESTION

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

b = 1 or b = -1

b = 0

b = 1

b = -1

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