# Rational expressions

May 6th, 2015
DotaCN
Category:
Algebra
Price: \$10 USD

Question description

1. State any restrictions on the variables.

3y² - 3y

y + 1

2. Simplify.  Be sure to state the restrictions on the variables

u² - 4

(u – 6)(u – 2)

3. Multiply.

5a³  times 2ab

ab              35

4. Multiply.

(a – 4)(a + 3)  times  2a²

a² - 4a                       (a + 3)(a – 1)

5. Divide and Simplify

3x³  divided by x

4y                     9y

6. Simplify completely

4x -12 times x + 3   times 16

x² - 9            5x² - 25x       x² - 25

7. Find the least common denominator of the two rational expressions

4k    +    2

k² - 9     3 – k

8. Subtract and simplify

4x + 1 -  3x – 4

X – 5      x- 5

9. Subtract and simplify

3g – 1 - 1- g

9             6

3x – 4 divided by  x

(x- 3)(x + 2)           x + 2

11. Subtract and simplify

4y                -

y² - 10y + 21      y – 7

12. Simplify

x² + 3x + 2

x + 2

13. Find the lowest common denominator of the fractions and simplify.  Assume that no denominator equals zero.

5      -    4

3x²y      6xy³

(Top Tutor) Daniel C.
(997)
School: UIUC

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May 7th, 2015
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