SOLUTION: simplify this rational algebraic expression. {{{(5-10x)/(2x^2+7x-4)}}}

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Question 224754: simplify this rational algebraic expression.
%285-10x%29%2F%282x%5E2%2B7x-4%29
Answer by LtAurora(115) About Me  (Show Source):
You can put this solution on YOUR website!
%285-10x%29%2F%282x%5E2%2B7x-4%29
Factor the num. and den.:
5%281-2x%29%2F%28%282x-1%29%28x%2B4%29%29
The %281-2x%29 and the %282x-1%29 can factor out to -1.
Thus the simplified expression is:
-5%2F%28x%2B4%29