Question

\(\sqrt{25}X\left(0,4-2\dfrac{1}{2}\right):\left[\left(-2\right)^3\right]\)

Answer 1

\(=5\cdot\left(0.4-2.5\right):\left(-8\right)\)

\(=5\cdot\dfrac{\left(-2.1\right)}{-8}=5\cdot\dfrac{21}{80}=\dfrac{105}{80}=\dfrac{21}{16}\)

Answer 2

`@Muopngot k h a t`

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\(\sqrt{25}\left(0,4-2\dfrac{1}{2}\right):\left[\left(-2\right)^3\right]\)

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\(=5\left(0,4-\dfrac{5}{2}\right):\left(-8\right)\)

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\(=5\left(0,4-2,5\right):\left(-8\right)\)

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\(=5.\left(-2,1\right):\left(-8\right)\)

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\(=5.\dfrac{-2,1}{-8}\)

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\(=5.\dfrac{21}{80}\)

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\(=\dfrac{5.21}{1.80}\)

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\(=\dfrac{105}{80}=\dfrac{21}{16}\)