2g squared+24g+72=

And your question is..

Is this correct?

2g^2 + 24g + 72 = ?

Is there any other info you can provide?

What specifically are you asking?

I presume he is asking what g is

First of all put it into a quadratic with a bracket
2(g^2 + 12g + 36)

see if you can work from there

2g^2 + 24g + 72 = ?

2(g^2 + 12g + 36) = ?

Factored:

2(g + 6)^2

At y=0, x=-6

It is an upturned parabola whose center has moved six to the left.