42:2 +1 ) #+5 *(+5x) +
42:1 #x*x + x
42:2 1+x -2*(x #+1 ) +5
42:2 #1+x -2*(x +1
42:1 x * #x +x +x
42:1 * x #+x +x +1
42:1 x*x #+ x *
42:1 + x #* x +x
42:1 x*x + #x * x
42:2 1+x #-2*(x +1 )
42:2 *(+5x) + #x*x
42:2 +5 *(+5x) #+ x*x
42:1 x +x #+x +1 +1
42:1 +x +1 #+1