求解 (55)(a+b)^2 | Microsoft Math Solver

跳到主要内容

展开

Tick mark Image

求值

Tick mark Image

测验

来自 Web 搜索的类似问题

https://socratic.org/questions/what-is-the-density-of-a-block-of-marble-that-occupies-310-cm-3-and-has-a-mass-o

https://socratic.org/questions/what-is-the-degree-of-3s-3-3s-what-kind-of-polynomial-is-it

https://socratic.org/questions/how-do-you-find-the-5th-term-in-the-binomial-expansion-for-5a-6b-5

https://socratic.org/questions/what-is-the-coefficient-of-a-3b-4-in-the-expansion-of-5a-b-7

共享

已复制到剪贴板

55\left(a^{2}+2ab+b^{2}\right)

使用二项式定理 \left(p+q\right)^{2}=p^{2}+2pq+q^{2} 展开 \left(a+b\right)^{2}。

55a^{2}+110ab+55b^{2}

使用分配律将 55 乘以 a^{2}+2ab+b^{2}。

55\left(a^{2}+2ab+b^{2}\right)

使用二项式定理 \left(p+q\right)^{2}=p^{2}+2pq+q^{2} 展开 \left(a+b\right)^{2}。

55a^{2}+110ab+55b^{2}

使用分配律将 55 乘以 a^{2}+2ab+b^{2}。

示例

二次方程式