解決(4*10^2)(-5*10^4)= |Microsoft數學求解器

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4\times 10^{6}\left(-5\right)

計算有相同底數之乘冪數相乘的方法: 將指數相加。2 加 4 得到 6。

4\times 1000000\left(-5\right)

計算 10 的 6 乘冪，然後得到 1000000。

4000000\left(-5\right)

將 4 乘上 1000000 得到 4000000。

-20000000

將 4000000 乘上 -5 得到 -20000000。

示例

二次方程式