SOLUTION: find fog {{{ f(x)= x+5}}} {{{ g(x)= 9/x^2 -25 }}}

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Question 665319: find fog +f%28x%29=+x%2B5 +g%28x%29=+9%2Fx%5E2+-25+
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
f(g(x))= 9%2Fx%5E2+-+25+%2B+5
= %289%2Fx%5E2+-+20%29
= %28%289-20x%5E2%29%2Fx%5E2%29
sqrt%280%29+=+sqrt%28%289-20x%5E2%29%2Fx%5E2%29
0 = %28sqrt%289-20x%5E2%29%29%2Fx
0 = %28sqrt%28%283%2A3%29%284%2A-1%2A5%29x%5E2%29%29%2Fx
0 = %28%283%2A2%2Aix%29sqrt%285%29%29%2Fx
0 = %286i%29cross%28x%29sqrt%285%29%2Fcross%28x%29
highlight_green%28fog+=+%286i%29+sqrt%285%29%29
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