AlexS11 AlexS11

03-12-2017
Mathematics

contestada

(√-15)(√-6), with steps please. Thank you.

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altavistard altavistard

03-12-2017

If you mult. these two radicals together, you'll combine the radicands -15 and -6 into one amount: 90, and this 90 is under the radical: sqrt(90).

Now, 9 is a perfect square, tho' 10 is not. Thus, sqrt(90) = 3sqrt(10) (ANSWER)

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