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Solve Quadractics Using Factoring
Test Description: Quadractics
Instructions: Answer all questions to get your test result.
1) m^2=8m
A
-1,-9
B
2,5
C
1,-9
D
0,8
2) x^2=-28+16x
A
14,2
B
-6,-3
C
6,-3
D
6,3
3) 25y^2=144
A
5/2,-5/3
B
-2,4
C
12/5,-12/5
D
5,3
4) 16p^2-18p=9
A
-3/8,3/2
B
6,-5/2
C
-6,-5/2
D
3/2,7/2
5) n^3-4n^2-45n=0
A
5,3,0
B
0,9,-5
C
5,-3,0
D
-9,5,0
6) Solve x^2 + 4x – 32 = 0
A
-8, 4
B
-8, -4
C
8, -4
D
8, 4
7) A rocket is shot into the air with an initial velocity of 800 m/sec. The equation h = -16t^2 + 1440t models the height of the rocket. How long does it take for the rocket to hit the ground (h=0)?
A
16 seconds
B
90 seconds
C
1440 seconds
D
800 seconds
8) What is a quadratic equation?
A
An equation that has four terms
B
An equation that has two terms
C
An equation that has degree 2
D
) An equation that has degree 4
9) Write a quadratic equation in the form ax^2 + bx + c = 0 that has the given numbers as solutions: (5, -3)
A
x^2 - 2x - 15 = 0
B
x^2 - 15x + 2 = 0
C
x^2 - 15x - 2 = 0
D
x^2 + 2x - 15 = 0
10) Solve the equation by factoring: x^2 + 9x + 20 = 0
A
-4, 5
B
9, 20
C
4, 5
D
-5, -4
*select an answer for all questions
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