Math B Practice #1

Hello students. This is your review quiz covering what we went over during our last session. Some important notations are: x^3 means x to the third, or x-cubed. The symbol, / means over (as in a fraction) or divided by.

This is just a review of the material from last week. Relax, take your time, use your notes, if necessary. Just remember to complete and e-mail your honest score on this quiz to me no later than 3 p.m. on Friday.

What is your age?
Under 18 Years Old
18 to 24 Years Old
25 to 30 Years Old
31 to 40 Years Old
41 to 50 Years Old
51 to 60 Years Old
Over 60 Years Old
What is your gender?
Male
Female
1. What is the complete factored form of x^3 - x^2 - 20x
x (x^2 - x - 20)
x (x + 4) (x - 5)
x (x - 4) (x + 5)
x (x^2 + x - 20)
2. What is the complete factored form of the equation, 2x^3 - 16x + 24x?
2x (x + 6) (x - 2)
2x (x^2 - 8x + 12)
2x (x - 6) (x + 2)
2x (x - 6) (x - 2)
3. How do you simply, 6x^2 - 14x / 2?
x (x - 7)
x (x^2 - 7x)
x (x + 7)
x^2 - 7x
4. What is the sum of y + 4 / y^2 - 49 and 4 / y + 7?
4y - 24
4y + 24
4 (y - 6)
4 (y + 6)
5. What is the product of 2x^3 - 4x / x^2 - 16 and x + 4 / x - 4 in its simplest form?
2x / x + 4
2x (x - 4) / x + 4
2x / x - 4
2x (x + 4) / x - 4
6. What is the product of 3 + 2i and 2 - 4i in its simplest form?
6 - 8i - 8i^2
2 (3 + 2i - 4i^2)
-2 (3 - 4i - 4i^2)
-2 (7 - 4i)
7. What is the value of x^5/2 - x^3/2 when x = 4.
24
16
8
4
8. What is the solution set of |x + 4| > 12?
-8 < x < 16
-8 > x > 16
-16 < x < 8
-16 > x > 8
9. If the discriminant of an equation is 49, then the roots are:
real, rational, and unequal
real, irrational, and unequal
real, rational, and equal
imaginary
10. What are the sum of the roots of the equation 3x^2 + 6x - 5?
2
-2
5/3
-5/3

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