ALGEBRA
posted by ggift .
x^2 + 6 = 8x
Is this linear, quadratic or exponential??

Linear will have terms containing variables not raised to any power, as well as constant terms.
Example: 2y+4x3=0
A quadratic expression will have terms containing the variable raised to a maximum power of 2.
Example: x²+3x4=0
An exponential expression will have terms which raise to a power containing the variable.
Example: 4^{x+4  65536 =0} 
So with the X being squared it would be exponential then?

x² 's exponent does not contain x, so it is not exponential.
It is exponential when the variable (for example, x) is found in the exponent, as in 3^{x}+4^{x} = 5^{x}.
So x² is NOT exponential.
If you reread the examples, it will be much clearer.