I need Algebra 2 HELP!!! Please help me out ASAP?

Question

I Need help for my algebra 2 test tommorw, i've been paying attention but my teacher is not explaining things clearly enough..I need helpp with Multiplying and Dividing Radical Expressions, i need help with Rational Exponents, i need help with Roots of Real Numbers, and with Rational Exponents...yeah i know thats alot, but i need explantion on those subjects, or at least a link to a site that i can practice this stuff in, but i really need to know how to do it, and i need an explanation...Please help me out

Answer 1

http://purplemath.com/modules/index.htm

is an awesome resource for all kinds of algebra topics, even ones you may have forgotten and need to brush up on.

Take a look at that one.
UMRmathmajor

Answer 2

Just remember some basic rules:

sqrt a * sqrt b = sqrt (ab)
Example 1: sqrt 3 * sqrt 27 = sqrt 3*27 = Sqrt 81 =9
Example 2: sqrt 72 = sqrt(36*2) = sqrt36 * sqrt 2 =6sqrt2
sqrt a/sqrt b = sqrt(a/b)
Example Sqrt 12/ sqrt 3 =sqrt (12/3) = sqrt 4 = 2

x^m * x^n = x^(m+n)
Example x^5 * x^3 = x^(5+3) = x^8

X^m/X^n = X^(m-n)
Examples: x^5/x^3= x^(5-3) = x^2
x^5/x^10 = x^(5-10) = x^-5

x^-m= 1/x^m and I/x^-m = x^m
Examples: x^-5 = 1/x^5 and 1/z^-12 = z^12

sqrt x = x^(1/2) cuberoot x = x^(1/3) and so on.

x^(m^n) = x^mn
Example x^(3^5) = x^(3*5) = x ^15

x^0 =1
Example (x5 + x4 + sqrt x)^0 =1

Remember thes rules and you'll do just fine.

Answer 3

Try sosmath.com. They have a good algebra section.