solve x to the power of 3+3.2x to the power of 2-16.83x-5.31=0

solve as a factoring equation
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5 Answers

3 + 3.2x^2 - 16.83x - 5.31 = 0
3.2x^2 - 16.83x - 2.31 = 0
320x^2 - 1683x - 231 = 0
 

This cannot be factorised, so you will need to use completing the square, or the quadratic formula.

The answers are here:

http://www.wolframalpha.com/input/?i=320x^2+-+1683x+-+231+%3D+0

by
9y-5x=22

10y+x=12

how do I rewrite one of the equations to solve for x,y

Thanks,
by
how to solve 4x/5 + 6 = -8 solve for x
by
edited
2.995732274=5388.501323(1/293-1/x) solve for x
by
-5.26+0.21x=19.94
by

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