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What formula can be used to solve this: 4x^4 + 3x^2 -8x^2 - 20x + 60 = 0?

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Does Algebra STOP at the quadratic formula!??

roots-of-polynomials

asked May 4, 2014 in ALGEBRA 2 by anonymous

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1 Answer

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To solve a quartic equation 4x^4 + 3x^3 - 8x^2 - 20x + 60 = 0

The four roots are x1, x2, x3, x4.

Compare it to general quartic equation

Solution

Imaginary roots

x = -1.9 + 1.5i, -1.9 - 1.5i, 1.5 + 1.1i and 1.5 -1.1i.

answered May 8, 2014 by david Expert

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