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Solving the quadratic, cubic and quartic equations

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A general solution for
x^2+ax+b=0
x^3+ax^2+bx+c=0
x^4+ax^3+bx^2+cx+d=0
are demonstrated

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https://brainmass.com/math/basic-algebra/solving-quadratic-cubic-quartic-equations-85178

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Solving Quadratics, Cubics and Quartics

1) To solve
Try a solution of the form
Substituting:
Expanding the brackets
Simplifying
Hence
So our solutions are

2) To solve
Try a ...

Solution Summary

Solving the quadratic, cubic and quartic equations is investigated. The solution is detailed and well presented.

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