# See my question

1. Jul 3, 2007

### muskan

plz see my question i cant dfind its imaginary roots .the equ is

X2 –3X +C,here 2 is the power of X and Cis constant we have to show that there exixts no reak number C for which the givev equation has two
distinct rootss in [-1,1]
i solve this by quadic formula but i got its real roots :zzz::zzz:

2. Jul 3, 2007

### Vagrant

How can you solve this by quadratic formula? There is no value of c given.
You can use the conditions in terms of c that would allow the equation to have real and distinct roots, and thereby show that there exists no such real c.

Last edited: Jul 4, 2007
3. Jul 4, 2007

### HallsofIvy

Staff Emeritus
Using the quadratic formula, your answer should have c as well as other numbers inside a square root. The roots will be complex as long as the number inside the square root are negative.