SOLUTION: solving a polynomial equation 8k^2=98

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Question 189894: solving a polynomial equation
8k^2=98
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

8k%5E2=98 Start with the given equation.


k%5E2=%2898%29%2F%288%29 Divide both sides by 8.


k%5E2=49%2F4 Reduce.


k=%22%22%2B-sqrt%2849%2F4%29 Take the square root of both sides.


k=sqrt%2849%2F4%29 or k=-sqrt%2849%2F4%29 Break up the "plus/minus" to form two equations.


k=7%2F2 or k=-7%2F2 Take the square root of 49%2F4 to get 7%2F2.


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Answer:


So the solutions are k=7%2F2 or k=-7%2F2.