suppose you have square root of -16 times square root of -25 (in separate square root symbols).(adsbygoogle = window.adsbygoogle || []).push({});

would the answer be:

a) no solution - cant have negative square roots

b) 4i times 5i which equals 20i^2 which is -20

c) -16 times -25 which is +400, then the square root of that is 20

which one is correct?

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# Homework Help: Basic square root question

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