SOLUTION: For what two values of x is the sum of these rational expressions undefined?Type your answer as two integers separated by a comma, like this: -13, x+3/x^2-2x-15 + 3x+1/2x+6

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Question 1084490: For what two values of x is the sum of these rational expressions undefined?Type your answer as two integers separated by a comma, like this: -13,

x+3/x^2-2x-15 + 3x+1/2x+6


Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

%28x%2B3%29%2F%28x%5E2-2x-15%29+%2B+%283x%2B1%29%2F%282x%2B6%29+....factor first

%28x%2B3%29%2F%28x%5E2%2B3x-5x-15%29+%2B+%283x%2B1%29%2F2%28x%2B3%29+

%28x%2B3%29%2F%28%28x%5E2%2B3x%29-%285x%2B15%29%29+%2B+%283x%2B1%29%2F2%28x%2B3%29+

%28x%2B3%29%2F%28x%28x%2B3%29-5%28x%2B3%29%29+%2B+%283x%2B1%29%2F2%28x%2B3%29+

%28x%2B3%29%2F%28%28x+%2B+3%29%28x+-+5%29%29+%2B+%283x%2B1%29%2F2%28x%2B3%29+....common denominator



%282%28x%2B3%29+%2B+%283x%2B1%29%28x+-+5%29%29%2F%282%28x%2B3%29%28x+-+5%29%29+
the sum of these rational expressions undefined if %282%28x%2B3%29%28x+-+5%29%29=0+
%282%28x%2B3%29%28x+-+5%29%29=0+ if %28x%2B3%29=0+ or if %28x+-+5%29=0+
%28x%2B3%29=0+ if x=-3
%28x+-+5%29=0+ if x=5
answer:-3,5