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https://prnt.sc/m8k2sr

 Jan 17, 2019
 #1
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+1

6w^2  =  -180      divide both sides by 6

 w^2  =  -30        take both roots

 

w =  ± √-30  =   ± i √ 30

 

 

cool  cool cool

 Jan 17, 2019

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