Welcome to the (harder) random root machine (with denominators)!

Compute: *b*^{4} / [*a*^{2}*c**d*√(2*a**c**d*)]

*Note*: due to the limitations of computer keyboards, you likely don't have an √ key, so just write “\sqrt”. If you want a non-square root, then you use brackets, for example “\sqrt[3]” for a cube root.

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