yessuzzz yessuzzz

25-10-2018
Mathematics

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What’s the answer???(PLEASE ONLY ANSWER IF YOU KNOW)

Whats the answerPLEASE ONLY ANSWER IF YOU KNOW class=

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choixongdong choixongdong

25-10-2018

3x^2 + 27 = 0

3x^2 = -27

x^2 = -9

as you know i^2 = -1

so

x^2 = 9 * (-1)

x^2 = 9i^2

x = + / - 3i

Answer

-3i

3i

Answer Link

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