(1/8) = 4^ (6x+2)

[a] negative 5/6
[b] negative 7/12
[c] negative 5/12
[d] negative 1/12

explain how you got the answer so i may learn. you!

1/8=4^(6x+2)  take the natural log of both sides

ln(1/8)=(6x+2)ln4  divide both sides by ln4

ln(1/8)/ln4=6x+2  subtract 2 from both sides

[ln(1/8)/ln4]-2=6x  divide both sides by 6

x=([ln(1/8)/ln4]-2)/6

x=-3.5/6

x=-7/12

We need the pictures of the graphs