Question

can certain equations that are really not quadratic be solved as quadratic?

Answer 1

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

Answer 2

some of them.
2x^4-3x^2+10=0 can be solved as a quadratic by taking u=x^2

Answer 3

Strictly speaking no. We expect a quadratic to have the highest index in any variable to be 2. But equations with a highest index ao an even number can often be found to be quadratics in disguise! :D