Question

What is y^2-6y=0 without using quadratic formula?

Answer 1

$y^2-6y=0\\ \\ y(y-6)=0\\ \\ y=0...and...(y-6)=0\\ \\ y=0...and...y=6$

Since both y squared and 6y have a common factor of y, can put that to the side and divide both the y squared and 6y to get the second step of the work shown above. Separate both the y on the outside of the parentheses and the numbers within the parentheses and set them both equal to 0 as shown in step 3 of the work shown above. Finally solve for y as you would normally. Those two number in step 4 should be your final answer.