Simplify square root of negative 72

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asked Feb 22, 2018 230k views

2 Answers

Chris Townsend · Answer 1 · 2018-03-01T13:41:25+0000

Factor inside the radical to reveal a perfect square

extract the square root of 36
What is Square root of negative 72
Write it

extract the square root of -1 which is "i"

Simplify square root of negative 72

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