# Difference between Biquadratic and Quartic

## What is the difference between Biquadratic and Quartic?

Biquadratic as an adjective is of a polynomial expression, involving only the second and fourth powers of a variable, as x4 + 3x2 + 2. sometimes extended to any expression involving the fourth power of variable (but no higher powers), as x4 − 4x3 + 3x2 − x + 1. while Quartic as an adjective is of, or relating to the fourth degree

### Biquadratic

Part of speech: *adjective*

Definition: Of a polynomial expression, involving only the second and fourth powers of a variable, as x4 + 3x2 + 2. Sometimes extended to any expression involving the fourth power of variable (but no higher powers), as x4 − 4x3 + 3x2 − x + 1.

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Quartic

Part of speech: *noun*

Definition: an algebraic equation or function of the fourth degree

Part of speech: *adjective*

Definition: of, or relating to the fourth degree

We hope you now know whether to use **Biquadratic or Quartic** in your sentence.