[Merkuri]

Hello in 3 days, I have a very important test (math).
I need help with Bi quadratic equations, I can't understand them and in my textbook is very very poorly explained. Can somebody give me a link for a tutorial or write something please?

[Dinosaws]

Here's a calculator to kind of aid in assisting you if you've solved them.
http://www.math.com/students/calculators...dratic.htm

Here's something I quickly found
http://www.mathsisfun.com/algebra/quadra...ation.html

[shizelkid]

I uses wolfran alpha and on my phone I just tell my teacher I'm using a calculator or I don't even let them know. Biquads aren't that hard. You have to really take the time to listen and slow down. If you learn it your way it is easy afterwards.
http://mathworld.wolfram.com/BiquadraticEquation.html

[Merkuri]

Thanks for your answers I have found help.