Question 402166
{{{ (2^(n+1)*(x+3)^n)/(2^n*(x+3)^(n-1))=(2^n*2*(x+3)^n)/(2^n*(x+3)^n*(x+3)^(-1))=2/(x+3)^(-1)=2(x+3)^1=2(x+3)=2x+6
}}}