Need answers checked

What is y = x2 – 12x + 20 written in vertex form?

y =(x – 12)2 + 36
y =(x – 12)2 + 26
y =(x – 6)2 – 16
y =(x – 6)2 + 20
An open box is formed by cutting squares with side lengths of 3 inches from each corner of a square piece of paper. What is a side length of the original paper if the box has a volume of 675 cubic inches?

21 inches
24 inches
33 inches
36 inches

Question

Need answers checked

What is y = x2 – 12x + 20 written in vertex form?

y =(x – 12)2 + 36
       y =(x – 12)2 + 26
       y =(x – 6)2 – 16
       y =(x – 6)2 + 20
An open box is formed by cutting squares with side lengths of 3 inches from each corner of a square piece of paper. What is a side length of the original paper if the box has a volume of 675 cubic inches?

21 inches
       24 inches
       33 inches
       36 inches

anonymous · Answer

D for the first one 
A for the second

anonymous · Answer

@undeadknight26

anonymous · Answer

The first one is C
y=x2-12x+20
y-20=x2-12x, with that you wanna make it a perfect square on the right side. 36 will do that.
y-20+36=x2-12x+36
y+16=(x-6)^2
y=(x-6)^2 -16

anonymous · Answer

A is correct for the second one.  Bruhhh is correct for the first one.