Question 1023467
{{{(1+2x)^(1/3) = 1^(1/3) + (1/3)*1^(1/3-1)(2x)^1 + (((1/3)(1/3-1))/(1*2))*1^(1/3-2)(2x)^2 + (((1/3)(1/3-1)(1/3 - 2))/(1*2*3))*1^(1/3-3)(2x)^3 }}}+....

={{{1+ (2/3)x - (4/9)x^2 + (40/81)x^3 }}}+...