SOLUTION: Please, please Help!!! I am really lost here. Problem #1 - Simplify: (3-2√7)*(3+2√7) Problem #2 -Simplify: √2t^5 * √10t^4 Proble

Algebra ->  Square-cubic-other-roots -> SOLUTION: Please, please Help!!! I am really lost here. Problem #1 - Simplify: (3-2√7)*(3+2√7) Problem #2 -Simplify: √2t^5 * √10t^4 Proble      Log On


   

Question 105556: Please, please Help!!! I am really lost here.

Problem #1 - Simplify:

(3-2√7)*(3+2√7)

Problem #2 -Simplify:

√2t^5 * √10t^4

Problem #3

3 + √(x^2-8x) = 0



Thank you so much for all your help.
Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!


%283-2%28sqrt%287%29%29%29%2A%283%2B2%28sqrt%287%29%29%29=9-%284%2A7%29
%283-2%28sqrt%287%29%29%29%2A%283%2B2%28sqrt%287%29%29%29=9-28
%283-2%28sqrt%287%29%29%29%2A%283%2B2%28sqrt%287%29%29%29=-19

Power up,
HyperBrain!