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Which expression is equivalent to square root of -108 minus square root of -3
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2 votes
Which expression is equivalent to square root of -108 minus square root of -3

User Senseiwu
by
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2 Answers

6 votes
sqrt(-108) - sqrt(-3) produces two imaginary terms: -i*sqrt( 36*3) -i*sqrt( 3).
Let's simplify that:

-i [ 6*sqrt(3) - 1*sqrt(3) ] = -i * 5* sqrt( 3) (answer)
User Scottish Smile
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7.8k points
1 vote
5 sqrt 3i is the correct answer
User Miltos
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7.9k points
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