Use the formula to find the magnitude.

Raise to the power of .

Raise to the power of .

Add and .

Rewrite as .

Pull terms out from under the radical, assuming positive real numbers.

Simplify |-8-6i|

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# Simplify |-8-6i|

Use the formula to find the magnitude.

Raise to the power of .

Raise to the power of .

Add and .

Rewrite as .

Pull terms out from under the radical, assuming positive real numbers.

Simplify |-8-6i|