How to Solve without using Quadratic formula?

Question

y2-6y=0 How to solve?

Answer 1

Your equation reads...

 y²-6y=0

y(y-6)=0.......factor out "y" from each term

 

Now set each term equal to zero and solve for "x"....

∴ y=0

...and...

 y-6=0...........add 6 to both sides

∴ y=6

 

So the solutions to the equation are x=0,6

 

Now try solving for "x" using the quadratic equation where the 

equation reads....

y²-6y+0=0

...and where...

a=1

b=-6

c=0