Mathematic Problems
z-26z+z-22+z+42-12z3-8-1z-2:z3+2z2+2z+4z3-2z2+2z-4
z-26z+z-22+z+42-12z3-8-1z-2:z3+2z2+2z+4z3-2z2+2z-4
=z-26z+z2-4z+4+z+8z+16-12z-2z2+2z+4-1z-2:z3+2z2+2z+4z3-2z2+2z-4
=z-22+z2+8z+4-z2-2z-4z-2z2+2z+4:z3+2z2+2z+4z3-2z2+2z-4
=z2+2z+4z-2z2+2z+4:z3+2z2+2z+4z3-2z2+2z-4
=1z-2:z3+2z2+2z+4z3-2z2+2z-4
=1z-2:z2z+2+2z+2z2z-2+2z-2
=1z-2:z2+2z+2z2+2z-2
=1z-2·z2+2z-2z2+2z+2
=1z+2
z-26z+z-22+z+42-12z3-8-1z-2:z3+2z2+2z+4z3-2z2+2z-4=1z+2