Question

3. Simplify √256√16÷? = 16.
(1) 8 (2) 16 (3) 4
(4) 256​

Answer 1

Step-by-step explanation:

√256 =16

at least that's the positive square root

− 16 is also a square root of 256

16²= (−16)² = 256

By definition, the principal square root of a number is the positive square root. The term "the square root" is commonly used to refer to the principal (positive) root though there are usually two roots.

√x² = | x |

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Answer 2

Answer:

The correct answer is (3) 4.

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