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Math 2 Unit 3 Test - Solving Quadratics

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Last updated 4 months ago
20 questions
Note from the author:
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SRMHS Math 2 Unit 3 Test - Solving Quadratics (Fall 2021)

Showing your work!

For any problems that say "show your work," you may choose to do one of the following:
1) Use the "show your work" area to write, draw, or type the math. (There is a math keyboard there.)
2) Do your work on notebook paper (labeled neatly) and give it to me at the end of the test.
Question 1
1.

Question 2
2.

Question 3
3.

Question 4
4.

Solve the following quadratic equation by factoring:
6x^{2}-42x+72=0
Type your two answers in the format: ___,___
(Separate your answers with a comma. Do not put any spaces. Do not type x=.)

Question 5
5.

Question 6
6.

Question 7
7.

Solve for c by factoring.

Type your two answers in the format: ___,___
(Separate your answers with a comma. Do not put any spaces. Do not type x=.)

Question 8
8.

Question 9
9.

Question 10
10.

Question 11
11.

Solve the equation by completing the square. Simplify your answer. Use the keypad to the right of the answer blank to type the plus/minus and the square root symbols. Make sure your correct answer is on your work as well.

Question 12
12.

Question 13
13.

Question 14
14.

Question 15
15.

Question 16
16.

Question 17
17.

Factor completely. Write your final answer without spaces! Show your work!

Question 18
18.

Solve the equation by graphing on this graphing calculator. Type your solutions in the "show your work" area for full credit. (Just having the correct graph WITHOUT identifying the solutions will NOT be full credit.)
y=4x^{2}+3x-1

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
Question 19
19.

Question 20
20.

Solve the quadratic using any method.
x^{2}+15x+56=0
Show your work.
x=8, 7
x=-8, 7
x=8, -7
x=-8, -7
How many real solutions does this quadratic equation have? (You do NOT need to find the solutions.)
x^{2}+9x-8=0
2 real solutions
1 real solution
no real solutions
All quadratic equations will have at least one imaginary solution.
True
False
What would be the first step to solving the following quadratic by the Quadratic Formula?
b^{2}-16b+64=19
Add 19 to both sides of the equation.
Divide both sides of the equation by 19.
Enter the equation (as-is) into the y= on the calculator.
Subtract 19 from both sides of the equation.
What is the solution of the quadratic equation 2x^{2} - x = 14?
Show your work in the space provided.
\frac{-1\pm\sqrt{111}}{2}
\frac{-1\pm\sqrt{113}}{4}
\frac{1\pm\sqrt{113}}{4}
\frac{1\pm\sqrt{111}}{4}
Given the standard form, find the factored form.
(x+6)(x-7)
(x+6)(x+7)
(x-6)(x-7)
(x-6)(x+7)
Factor the polynomial:
(x + 5) (x + 2)
(3x + 1) (x + 2)
(x + 3) (x + 2)
(3x + 2) (x + 1)
Solve by completing the square. Show your work. Hint: Take out a GCF first.
{ -2 , 6 }
{ -6 , -2 }
{ -6 , 2 }
{ 2 , 6 }
Write the expression below in simplest radical form:

Simplify the radical.
\sqrt{-27}
-3i\sqrt{3}
9i\sqrt{3}
3i\sqrt{3}
-3\sqrt{3}
Factor the expression (x^{2}-81)
x(x-9)
9x(x-9)
(x-9)^2
(x+9)(x-9)
Solve the equation by using square roots. 3x^{2}=21
x=7,-7
x=\pm \sqrt{7}
x=\pm \frac{\sqrt{21}}{3}
x=-\sqrt{7},\sqrt{21}
Factor out the GCF. 6x^{5}+8x^{3}
2(3x^{5}+4x^{3})
2x(3x^{4}+4x^{2})
2x^{3}(3x^{2}+4)
6x^{3}(x^{2}+2)
Choose the number that fills in the blank to complete the square.
x^{2}+12x+____
144
36
12
6
Identify the factors, and solution(s) of the quadratic equation.
Hint: You should only use four things (two for factors and two for solutions
x = -3
no solution
x = ½
(x + 3)
x = 1
(2x - 1)
(x - 1)
Factors
Solution(s)