SOLUTION: 9K^2+21=25

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Question 851045: 9K^2+21=25
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
9k%5E2%2B21=25


9k%5E2=25-21


9k%5E2=4


k%5E2=4%2F9


k=%22%22%2B-sqrt%284%2F9%29


k=sqrt%284%2F9%29 or k=-sqrt%284%2F9%29


k=2%2F3 or k=-2%2F3


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The two solutions are k=2%2F3 or k=-2%2F3