$\displaystyle k^2-7=0$

I don't even know where to start. There wasn't any examples in my book that matches this problem. If anyone could assist.

Edit: I'm sorry, It's "0"

Printable View

- Jan 15th 2012, 02:19 PMHellBunnyQuadratic Equation
$\displaystyle k^2-7=0$

I don't even know where to start. There wasn't any examples in my book that matches this problem. If anyone could assist.

Edit: I'm sorry, It's "0" - Jan 15th 2012, 02:42 PMrazemsoft21Re: Quadratic Equation
you can start from this point:

$\displaystyle k^2=7$

solve for k ...

OR

from this piont:

$\displaystyle k^2-(\sqrt 7)^2=0$

factorize and solve ... - Jan 15th 2012, 02:48 PMe^(i*pi)Re: Quadratic Equation
- Jan 15th 2012, 04:01 PMHellBunnyRe: Quadratic Equation
- Jan 15th 2012, 04:07 PMQuackyRe: Quadratic Equation
Incorrect. Why did you draw that conclusion? Study posts #2 and #3 carefully.

- Jan 15th 2012, 05:57 PMHellBunnyRe: Quadratic Equation
That's the wrong answer? Then I don't know. Just thought it was right. What you guys want me to answer? 7 Couldn't be squared, so I assumed k={7,-7} OH! I see. I written down the answer incorrectly.

$\displaystyle + - \sqrt 7$ (Clapping) - Jan 15th 2012, 06:08 PMQuackyRe: Quadratic Equation
There you go.