# how to solve for x? 4.5 x 10^2 = 16 x^4 / (1100-x)(1003-x)?

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- Alfredo KrausLv 78 years agoBest Answer
Multiplying both sides by (1100-x)(1003-x) and simplifying the equation becomes

x^4 - 281.25 x^2 + 591468.75 x - 310303125 = 0

This can be solved analytically using the Ferrari method (Google it). The four roots are

124.592974 , -141.381352, and 8.39418889 +/- 132.987163 i

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