SOLUTION: List all real values of x such that f (x) = 0. If there
are no such real x, type DNE in the answer blank. If there is
more that one real x, give a comma separated list (e.g. 1,2
Algebra ->
Rational-functions
-> SOLUTION: List all real values of x such that f (x) = 0. If there
are no such real x, type DNE in the answer blank. If there is
more that one real x, give a comma separated list (e.g. 1,2
Log On
Question 420812: List all real values of x such that f (x) = 0. If there
are no such real x, type DNE in the answer blank. If there is
more that one real x, give a comma separated list (e.g. 1,2).
f(x)= (-3/x-7)+(-8/x+5)
You can put this solution on YOUR website! (-3/x-7)+(-8/x+5) = 0
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Multiply thru by (x-7)(x+5) to get:
-3(x+5) - 8(x-7) = 0
-11x -15+56 = 0
-11x = -41
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x = 41/11
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Cheers,
Stan H.