SOLUTION: Evaluate -10/5x-x^2+5 for x= -2

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Question 551720: Evaluate -10/5x-x^2+5 for x= -2
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
-10/(5x-x^2+5)

-10/(5(-2)-(-2)^2+5)

-10/(5(-2)-4+5)

-10/(-10-4+5)

-10/(-9)

10/9


So -10/(5x-x^2+5) = 10/9 when x = -2