Word
trinomial
三项式
核心释义
trinomial
- 1.
由三项组成的表达式。
An expression consisting of three terms.
由三项组成的表达式。
用法In use
In algebra class, we practiced factoring a trinomial such as x² + 2x + 1.
用法提示:trinomial 是名词,指由三项组成的代数表达式。
To simplify the expression, multiply each term of the trinomial by 3.
用法提示:trinomial 作名词,作 of 的宾语,表示三项式。
The students compared two trinomials and found that their terms were in different orders.
用法提示:trinomials 是 trinomial 的复数形式,表示两个三项式。
a trinomial in + variable
表示变量。常用介词in引出变量。
This is a trinomial in x.
这是一个关于x的三项式。
factor a trinomial
因式分解是常见操作。
相关词与表达Connections
搭配Collocations
- factor a trinomial
- 因式分解三项式
- Students learn to factor a trinomial by finding two numbers that multiply to the constant term.学生学会通过找到两个乘起来等于常数项的数来因式分解三项式。
- quadratic trinomial
- 二次三项式
- A quadratic trinomial is of the form ax² + bx + c.二次三项式的形式是 ax² + bx + c。
- perfect square trinomial
- 完全平方三项式
- A perfect square trinomial can be expressed as (a + b)².完全平方三项式可以表示为 (a + b)²。
- trinomial equation
- 三项式方程
- Solving a trinomial equation often involves factoring.解三项式方程通常涉及因式分解。
- expand a trinomial
学习提示Learner notes
记忆技巧Memory Tip
tri表示三,nomial意为项,三项式即三个单项式的和。
语境与语域Context & Register
语域:formal 常见场景:数学、代数 通常用于数学和代数领域,属于正式术语。
语法说明Grammar Note
数学术语,通常作可数名词
发音与拼写Pronunciation & Spelling
Binomial and polynomial end with the same sound /noʊmiəl/ as trinomial. Other words ending in -ial like 'special' (/ˈspɛʃəl/) or 'social' (/ˈsoʊʃəl/) have different vowel sounds and are not rhymes.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.