You will need to add 3 to each side.
x^2-3=15
+3 +3
x^2=12
and go from there
Ummmmmmmmmmmmm
Mm A is correct I think. The question was unclear but A is the only correct function
I am confused what is your question then i will tell you the answer.
Sorry for the hand writing. But you want to factor out a 4y^2 which will result in (9y^2-1). Then you will factor out the equation in parentheses to (3y-1)(3y+1). Don’t forget to put the 4y^2 out front!
It’s either B or D. I’m sorry I’m not so sure but I think it’s either one of those.