求解 -4-2(4)+8 | 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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-4-8+8

将 2 与 4 相乘，得到 8。

-12+8

将 -4 减去 8，得到 -12。

-4

-12 与 8 相加，得到 -4。

示例

二次方程式