(3g -4) -2 (3g+4)
To solve the expression (3g -4) -2 (3g+4), let's distribute the -2 to each term inside the parentheses:
(3g - 4) - 2 (3g + 4)
= 3g - 4 - 2 * 3g - 2 * 4
= 3g - 4 - 6g - 8
Now, let's combine like terms:
= (3g - 6g) + (-4 - 8)
= -3g - 12
Therefore, the simplified expression is -3g - 12.