The square root of 5 +the square root of 80 = the square root of 5 + square root of 16 times 5 = the square root + 4 and the square root of 5 = 5 and the square root of 5. I am willing to offer medals if who ever helps me is willing to help with a few other problems tomorrow and also explain the process. I will give you medals for each individual problem if you become a fan and help me out with these Radicals and Complex Numbers. Thanks!!!

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√(5) + √(80) = √(5) + √(16*5) = √(5) + __ √(5) = __
Here is a visual of my problem

You use the rule
\[\Large \sqrt{x*y} = \sqrt{x}*\sqrt{y}\]

so,
\[\Large \sqrt{16*5} = \sqrt{16}*\sqrt{5}\]
\[\Large \sqrt{16*5} = ??\]

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