SOLUTION: not sure how to solve this 2 Sin^2 x- Sin x-1=0

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Question 558488: not sure how to solve this
2 Sin^2 x- Sin x-1=0
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
2 Sin^2 x- Sin x-1=0
solve like quadratic equation
factor:
(2sinx+1)(sinx-1)=0
sinx=-1/2
x=240º and 300º (0 < x < 360º)
or
Sinx=1
x=90º (0 < x < 360º)