I seem to be okay with converting standard form to quadratic, but i am having trouble with the other way around...could someone please help explain it to me?
How do i convert this to standard form?
From what i understand, it would be:
I seem to be okay with converting standard form to quadratic, but i am having trouble with the other way around...could someone please help explain it to me?
How do i convert this to standard form?
From what i understand, it would be:
You were doing okay until the last line, where you forgot 6*4 = 24
In the line before the last, you should have removed the 4 from y/4.
So your initial equation is
y = 4x^2 -24x +12
Then,
y = 4[x^2 -6x +3]
This has to be done so that the coefficient of the x^2 is 1 only, because completing squares is done when the coefficient of the squared variable is 1 only.
Then, following your style,
y = 4[x^2 -6x +9 +3 -9]
y = 4[(x-3)^2 -6]
y = 4(x-3)^2 -24