I need help simplifying a rational expression.

Using the law of exponents would (2a)^5 / a^-2 = 2^5*a^7 I figured I could factor it out to be 2^5 * a^5 / a^-2 Thinking that I could just take the inverse of a^-2 and add it to the top line.. hence getting 2^5 * a^5 * a^2 simplified to 2^5*a^7 But when...

Hello, I need help with simplifying the radical expression: sqrt10/81? It's a radical sign and the fraction 10/81 under it. I have two choices: 10/9, which makes the most sense but does not equal the original expression and 9sqrt10 which makes more sense...

i need to make an expression that equals to one involving simplifying a 4th root radical expression (multiply or divide) any help???

When simplifying a rational expression, why do you need to factor the numerator and the denominator? B. When adding and subtracting rational expressions, why do you need a LCD? C. When a polynomial is not factorable what is it called? Why?

The problem is: x^2 + 6x +5 ---------------- x^2 - 25 The work is shown in the book as follows Step 1: (x+5)(x+1) -------------- (x+5)(x-5) No problem so far. Step 2: Factor out the (x+5)s. Still no problem. Step 3: The answer is: x + 1 ------- , x ...

I know this is probably not as complex as I make it out to be but I cant find the right anwser and I need to have the correct for a test. Simplify: 1/6 - 1/y Divided by 6-y/6 Hope the format of how this is set up makes sense.. its basically the two first...