The first three terms of a geometric sequence are shown. x plus 3 comma negative 2 x squared minus 6 x comma 4 x cubed plus 12 x squared comma dot dot dot What is the eighth term of the sequence?
Answer
A
128 x to the 8th power plus 384 x to the 7th power
B
negative 128 x to the 8th power minus 384 x to the 7th power
C
256 x to the 9th power plus 768 x to the 8th power
D
negative 256 x to the 9th power minus 768 x to the 8th power