SOLUTION: What are the x's of: (2(cos^2)x)+(3(cos x))=0

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Question 748452: What are the x's of: (2(cos^2)x)+(3(cos x))=0
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
What are the x's of: (2(cos^2)x)+(3(cos x))=0
2cos%5E2%28x%29%2B3cos%28x%29=0
divide by cos(x)
2cos%28x%29%2B3=0
2cos(x)=-3
cos(x)=-3/2
no solution: (-1 ≤ cosx ≤ 1)