what is x if y = 4000

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what is x if y = 4000 1600x^3+1200x^2+800x = 4000

Guest Dec 14, 2014

+118723

+5

Best Answer

Your question doesn't make sense but I think that you are asking for this to be solved.

$$\\1600x^3+1200x^2+800x = 4000\\
4x^3+3x^2+2x = 10\\
4x^3+3x^2+2x-10 = 0\\$$

The only real answer (from the graph) is

approx = 1.05

Melody Dec 15, 2014

Melody · Answer 1 · 2014-12-15T12:47:16

Your question doesn't make sense but I think that you are asking for this to be solved.

$$\\1600x^3+1200x^2+800x = 4000\\
4x^3+3x^2+2x = 10\\
4x^3+3x^2+2x-10 = 0\\$$

The only real answer (from the graph) is

approx = 1.05