simplify the expression. 6 square root 5 - 3 square root 80

Expert Answers

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`6sqrt5-3sqrt80`

`= 6sqrt5-3sqrt(16*5)`

`= 6sqrt5-3[sqrt16*sqrt5]`

`= 6sqrt5-3*4sqrt5`

`= 6sqrt5-12sqrt5`

`= sqrt5(6-12)`

`= -6sqrt5`

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