Posted by **Kristen** on Tuesday, January 15, 2013 at 4:44pm.

I posed these one's before but added parenthesis which I think made it confusing as the actually questions do not have them. So, I'm reposting them without to see if it makes sense. If not I understand.

1. Compute as indicated. Write your answer in lowest terms. a+3/a^2-4-a+5/a^2-4a+4

a. -6a-16/(a+2)(a-2)^2

b. -6a+4/(a+2)(a-2)^2

c. -6a-16/(a+2)(a-2)

d. -6a+4/(a+2)^2(a-2)

2. Use the properties of exponents to simplify the expression. Write the answer using positive exponents only. So the equation is in parenthesis. (a*b^-4/c^-7)^-3

a. ab^12/c^21

b. b^12/a^3c^21

c. b^12c^7/a^3

d. ab^12c^7

3. Compute as indicated. Write your answer in lowest terms. So this one starts with 3/m-8 then at the end next to the divide line it shows -5. The answer for A start with a negative next to the divide line.

a. - 2/m-8

b. -5m-5/m-8

c. -5m-37/m-8

d. -5m+43/m-8

4. Simplify the compound rational expression. Use either method. So this equation has a +1 before the top equation and a +y before the bottom.

+1 5/y-10/ +y 25/y-10

a. 1/y-5

b. 1/y+5

c. 6/y+25

d. 1/y+1/5

5. Simplify the compound rational expression. Use either method. 2/a-1/3/4/a^2-1/9

a. a+3/3

b. a-3/3

c. 3a/6+a

d. 3a/6-a

6. Compute as indicated. Write final results in lowest terms. x^2+2x-15/2x-6 Divide by x^2-25/4x^2

a. 2x^2/x-3

b. 2x^2/x+3

c. 2x^2/x-5

d. x-5/2x^2

Thanks again for all the help its helping me!

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