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Pronunciation varies by accent · adjective
(mathematics) Of a polynomial expression, involving only the zeroth, second, and fourth powers of a variable, as x⁴ + 3x² + 2. Sometimes extended to any expression involving the biquadrate or fourth power (but no higher powers), as x⁴ − 4x³ + 3x² − x + 1..
Use biquadratic when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Biquadratic means (mathematics) Of a polynomial expression, involving only the zeroth, second, and fourth powers of a variable, as x⁴ + 3x² + 2. Sometimes extended to any expression involving the biquadrate or fourth power (but no higher powers), as x⁴ − 4x³ + 3x² − x + 1..
Common synonyms include biquadrate, quartic, biquadratic equation, fourth power.
The opposite depends on the specific sense.
Use biquadratic where its definition matches the intended context.
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