# Equation

• March 29th 2012, 02:52 PM
Mhmh96
Equation
• March 29th 2012, 05:33 PM
Wilmer
Re: Equation
Quote:

Originally Posted by Mhmh96

Let n=m
SQRT[11 + SQRT(120)] = 2SQRT(m)
11 + 2SQRT(30) = 4m
m = [11 + 2SQRT(30)] / 4

Wrap it up!
• March 30th 2012, 05:21 AM
emakarov
Re: Equation
If m and n are arbitrary real numbers, then $m^3+n^3$ is not a function of $\sqrt{m}+\sqrt{n}$.

For example, if $m = 11+\sqrt{120}=21.95$ and n = 0, then $m^3+n^3=10582.00$, but if m = 4.95 and n = 6.05, then $m^3+n^3=343.07$.