Question 373967
{{{(2x^2+4x-1)/3x^2=(2/3)x^(2-2)+(4/3)x^(1-2)-(1/3)x^(0-2)}}}
{{{(2x^2+4x-1)/3x^2=(2/3)x^0+(4/3)x^(-1)-(1/3)x^(-2)}}}
{{{(2x^2+4x-1)/3x^2=(2/3)+4/(3x)-1/(3x^2)}}}