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OpenStudy (anonymous):
Simplify the expression: √-108 + √-27
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OpenStudy (anonymous):
Choices: A. -3√15 B. 3i√15 C. 9i√3 D. -9√3
OpenStudy (cwrw238):
look for perfect squares in the factors of each number eg √-27 = √3 * √-9 = 3i √3 now do a similar process with √-128
OpenStudy (anonymous):
biggest perfect square in 128 is 16
OpenStudy (anonymous):
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