Thread: Root-simple,but...

Please;

how do I get

Originally Posted by marijakopljar

Please;

how do I get

Did you mean

Kalyan

How do you get this equation? How should we know?

Perhaps you're really asking how do you SOLVE this equation?

Originally Posted by marijakopljar

Please;

how do I get

What you wrote is the same as . What you perhaps intended was
But "how do I get" an equation usually means "how do I show that these are the same for all x". And what you have isn't. For example if x=3, the left side (of both of those) is while the right side of the last is , NOT 2. For the first, it is 1/3- 1= -2/3.

If you mean "how do I solve ?} the simplest thing to do is get rid of the square roots by squaring both sides: which, mutiplying both sides by gives so you have to solve the cubic equation . However, that has no rational number roots so I doubt if that is what you mean.

There is some doubt in the explanation. What do you want to do??