求解 (-2)+5-(-2)= | Microsoft Math Solver

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求值

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因式分解

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测验

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3-\left(-2\right)

-2 与 5 相加，得到 3。

3+2

-2 的相反数是 2。

5

3 与 2 相加，得到 5。

示例

二次方程式