Question

$\frac{3x}{3x+3} + \frac{3x+3}{3x}$

Answer 1

3x/3x+3+3x+3/3x

3x/3(x+1)+3(x+1)/3x

x/x+1+x+1/x

x^2+(x+1)^2/x×(x+1)

x^2+x^2+2x+1/x^2+x

2x^2+2x+1/x^2+x