list all real values of x such that f(x)=0 Review2/9/reffectivelUser sim 398idis

Question

list all real values of x such that f(x)=0 Review2/9/reffectivelUser sim 398idisplayMode-imagesäs Logged in WeBWorK MAA ANIMTCL ASSCATION OF MATHEMATICAL ASSOCIATION OF AMERICA eview2: Problem 9 md Mod in the answer blank. If there is more that one real x, give a ifthere more (1pt) List all real values of r such that f(x) comma separated list (e.g. 12) 0rthere are no such real r. type DNE in the answer blank +11 r 12 You have atempted this problem 0 tmes You have unimited attempts remaining 8 9 0

Explanation / Answer

f(x) = 8/(x +11) + (-2)/(x -12)

f(x) = 0

==> 8/(x +11) + (-2)/(x -12) = 0

==> 8/(x +11) = 2/(x -12)

==> 8(x -12) = 2(x +11)

==> 4(x -12) = (x +11)

==> 4x -48 = x +11

==> 4x -x = 48 + 11

==> 3x = 59

==> x = 59/3

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