Given:



Highest power of the equations says the number of solutions in the equation.
For equation (1) 1 is the highest power.
No of solutions in equation (1) is 1.
For equation (2) 5 is the highest power.
No of solutions in equation (2) is 5.
For equation (3) 3 is the highest power.
No of solutions in equatiion (3) is 3.