SOLUTION: simplify by rationalizing the denominator x/sqrtx-3 completely factorise the following 3x^2-3x-18 Simplify 2x-2/x^2-2x-8 / x^2-1/x^2+5x+4

Algebra ->  Radicals -> SOLUTION: simplify by rationalizing the denominator x/sqrtx-3 completely factorise the following 3x^2-3x-18 Simplify 2x-2/x^2-2x-8 / x^2-1/x^2+5x+4      Log On


   

Question 548960: simplify by rationalizing the denominator
x/sqrtx-3
completely factorise the following
3x^2-3x-18
Simplify
2x-2/x^2-2x-8 / x^2-1/x^2+5x+4
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x%2F%28sqrtx-3%29
multiply by the conjugate
x%28sqrt%28x%29%2B3%29%2F%28%28sqrt%28x%29-3%29%28sqrt%28x%29%2B3%29%29
x%28sqrt%28x%29%2B3%29%2F%28x-9%29


completely factorise the following
3x^2-3x-18
3%28x%5E2-x-6%29
3%28x-3%29%28x%2B2%29
Simplify
%28%282x-2%29%2F%28x%5E2-2x-8%29%29 / %28%28x%5E2-1%29%2F%28x%5E2%2B5x%2B4%29%29
2%28x-1%29%2F%28%28x-4%29%28x%2B2%29%29/%28%28%28x%2B1%29%28x-1%29%29%2F%28%28x%2B4%29%28x%2B1%29%29%29%29
2%28x-1%29%2F%28%28x-4%29%28x%2B2%29%29*%28%28x%2B4%29%28x%2B1%29%29%2F%28%28x%2B1%29%28x-1%29%29
2%28x%2B4%29%2F%28%28x-4%29%28x%2B2%29%29

m.ananth@hotmail.ca