salynaemily
salynaemily
24-04-2016
Mathematics
contestada
f(x)= 3/x+2-square root x-3
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JoshGk76
JoshGk76
24-04-2016
if f(x) = 0
(3/x+2)^2=x-3
(9/x^2+4x+4)=x-3
9=(x-3)(x^2+4x+4)
9=x^3+x^2-8x-12
0=x^3 +x^2-8x-21
put it in the quadratic formula
x= 3.3182
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