Quiz about Algebra 1 - Unit 3 Review

Question 1

Solve
x² + 2x - 24 = 0

Accepted Answer

x = -6, x = 4

Answer

x = 6, x = -4

Answer

x = 12, x = -2

Answer

x = 8, x = -3

Question 2

Find the solutions to the quadratic equation: $$-28=7x\left(x+4\right)$$

Select all that apply.

Accepted Answer

-2

Answer

2

Answer

-4

Answer

4

Question 3

Find the solutions to the quadratic equation: $$2x^2+15x-8=9$$

Select all that apply.

Accepted Answer

-8.5

Accepted Answer

1

Answer

8.5

Answer

-1

Question 4

What are the solutions to $$\left(x+7\right)^2=81$$ ?

Accepted Answer

-16 and 2

Answer

-74 and 88

Answer

-2 and 16

Answer

-88 and 74

Question 5

What are the solutions to $$2\left(x-7\right)^2=32$$ ?

Accepted Answer

x = 3 and x = 11

Answer

$$x=7\pm\sqrt[]{32}$$

Answer

$$x=\pm\sqrt[]{65}$$

Answer

x = -1 and x = 15

Question 6

Solve the following quadratics equation by completing the square...

x² + 6x - 3 = 0

Accepted Answer

$$-3\pm2\sqrt{3}$$

Answer

$$3\pm2\sqrt{3}$$

Answer

$$12\pm\sqrt{3}$$

Answer

$$-12\pm\sqrt{3}$$

Question 7

Solve (4x + 3)(x - 6) = 0

Accepted Answer

x = {-3/4, 6}

Answer

x = {-3, 6}

Answer

x = {3/4, -6}

Answer

x = -3/4, -6}

Question 8

x² + 44 = -15x

Accepted Answer

{-11, -4}

Answer

{-8, 2}

Answer

{-7, 5}

Answer

{-11}

Question 9

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

Accepted Answer

Option B is correct

Answer

No Real Solution

Answer

C.

Answer

D.

Question 10

What should you do first in solving this equation?
x² + 6x - 13 = 3

Accepted Answer

Make it equal 0 by subtracting 3 on each side

Answer

Get factored form

Answer

Write down: a=1, b=6, c=-13

Answer

Type it all in a calculator.

Algebra 1 - Unit 3 Review

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