Fourth Degree Polynomial Equations Formula

y = ax⁴ + bx³ + cx² + dx + e

4th degree polynomials are also known as quartic polynomials.

Quartics has the following characteristics

1. Zero to 4 roots.

2. 1, 2 or 3 extrema.

3. Zero, one or two inflection points.

4. No general symmetry.