Question

Do you use the quadratic equation for this problem..?

Answer 1

\[4y ^{2}-20y+25\]

Answer 2

Do you mean quadratic formula?

Answer 3

there's no question here...

Answer 4

BTW, it's NOT an equation though.

Answer 5

or do you mean to just factor the expression?

Answer 6

Oops.

Answer 7

Do you just use the quadratic formula to solve the equation?

Answer 8

You can, but not necessary for this question, assuming there is '=0' after '4y^2-20y+25'

Answer 9

how? @Callisto

Answer 10

I mean, how is it not necessary?

Answer 11

You can factor the expression on the left.

Answer 12

(2y-5)(2y-5)?

Answer 13

Yes.
That is \[(2y-5)^2=0\]

Answer 14

Take square root on both sides
2y-5 = 0
Now, solve y.