3^[(sqrt x) -1]+3^[2-(sqrt x)]=12

Printable View

- November 20th 2012, 11:54 AMDarkAngleHelp me solve this equation please.
3^[(sqrt x) -1]+3^[2-(sqrt x)]=12

- November 20th 2012, 12:08 PMMarkFLRe: Help me solve this equation please.
This forum is for introductions. The forums most appropriate for this topic is either algebra or pre-calculus.

Anyway, I think I would rewrite the equation as follows:

Multiply through by :

Now you have a quadratic in . - November 20th 2012, 12:14 PMpickslidesRe: Help me solve this equation please.

Does this make life easier? - November 20th 2012, 01:28 PMDarkAngleRe: Help me solve this equation please.
[3^(sqrtx)]/3 + 3^2/3(sqrtx)=12?

- November 20th 2012, 01:55 PMskeeterRe: Help me solve this equation please.
some advice ... look at post #2 again