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QUESTION
What is 4 square root of 80?
##4sqrt(80) = 16sqrt(5)##
Simplify/solve it by finding factors of ##80## that are perfect squares and can be moved out of the radical sign.
##4sqrt(80) = 4sqrt(16*5) = 4sqrt(16)sqrt(5)= 4*4sqrt(5)= 16sqrt(5)##
