Return (algebraic) equation

Lecture






ax 4 + bx 3 + cx 2 + bx + a = 0. - Returnable (algebraic) equation.

To solve this equation, it is necessary to make a replacement:
y = x + 1 / x,
as a result, we get a quadratic equation:
ay 2 + by + c -2a = 0.
created: 2014-10-05
updated: 2026-03-08
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Lectures and tutorial on "HANDBOOK ON MATHEMATICS, SCHOOL MATHEMATICS, HIGHER MATHEMATICS"

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