Question

What is the domain of the function?
3x^2-27 / x^2+7x+12 =y

Answer 1

here
take 3 outside that's 3(x^2-9)
that's 3(x^2-3^2) = 3(x+3)(x-3)
in denominator
x^2+7x+12 =(x+3)(x+4)
after solving
u wil get
3(x-3)/x+4) = y
now find the domain
domain = value in which function is defined

Answer 2

I did something wrong because i had 3(x-9) / x+4-y=0

Answer 3

haha
you have to simplify equation and then find domain
it gets easy
so whats your domain

Answer 4

I am extremely confused is it 0?

Answer 5

is it -3 and -4