Question

What's the value of

`√(400) =`
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Answer 1

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

20

Explanation:

Hope it is helpful....

Answer 2

20

Explanation:

Use a calculator, press squareroot button on a calculator and press 400 it will give you 20... Its like 20*20=400