f ( x ) = x 5 + 6 x + 2 {\displaystyle f(x)=x^{5}+6x+2} 2 = ( ( 8 − 2 x ) × 4 6 − x 2 ) {\displaystyle 2=\left({\frac {\left(8-2x\right)\times 4}{6-x^{2}}}\right)}
