Question

question in comments help with parabola?

Answer 1

Any work on this so far ??

Answer 2

-2(x+4)(x+4)+6=0

Answer 3

Now FOIL it

Answer 4

\[-2x^2+12x+22?\]

Answer 5

thats the prt im stuck on i don't know what to do with the -2?

Answer 6

please check last term once ....

Answer 7

should it be +16?

Answer 8

it should be like -2x^2-12x-26 okay ??

Answer 9

ok i get that part now

Answer 10

So we get equation as y = -2x^2-12x-26
Now to find symmetry just replace x by -x if you got original equation then it is symmetric about x axis getting this ?

Answer 11

ok

Answer 12

so should I do the whole \[-\frac{ b }{ 2a }\]