Algebra problem. Evaluate

Evaluate G(x)=7x^2-7x-117 at x=7

G(x) = 7(7^2)-7(7)-117
. 7(49)-49-117
. 343-49-117
. 294 - 117
.
. g(x)= 177

Substitute 7 in for x and get
7(7)^2-7(7)-117
343-49-117=177
177 is your final answer

use a calculator

G(7) = 7(49) - 7(7) - 117 = 177

G(x) at x = 7
G(7)
= 7x^2 - 7x - 117
= 343 - 49 - 117
= 343 - 166
= 177