名词
中文翻译：四次方的
同义词：
['quartic', 'quintic', 'sextic例句：1. The function is described by the equation of a quadratic equation.（这个函数由二次方程来描述。）']
例句：
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1. The function is described by the equation of a quadratic equation.
这个函数由二次方程来描述。
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2. The quartic polynomial has roots at the points (-1, -1) and (1, 1).
这个四次多项式在点(-1, -1)和(1, 1)处有根。
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3. The quadratic equation x^2 - 4x + 4 = 0 has two real roots.
这个二次方程x^2 - 4x + 4 = 0有两个实数根。