Posted by **ggift** on Thursday, September 17, 2009 at 3:19pm.

x^2 + 6 = -8x

Is this linear, quadratic or exponential??

- ALGEBRA -
**MathMate**, Thursday, September 17, 2009 at 4:10pm
Linear will have terms containing variables not raised to any power, as well as constant terms.

Example: 2y+4x-3=0

A quadratic expression will have terms containing the variable raised to a maximum power of 2.

Example: x²+3x-4=0

An exponential expression will have terms which raise to a power containing the variable.

Example: 4^{x+4 - 65536 =0
}

- ALGEBRA -
**ggift**, Thursday, September 17, 2009 at 4:39pm
So with the X being squared it would be exponential then?

- ALGEBRA -
**MathMate**, Thursday, September 17, 2009 at 5:31pm
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.

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