Answer:
The common ratio is -6
Step-by-step explanation:
The given sequence is

The common ratio can be found using any two consecutive terms of the geometric sequence.

The correct answer is the last choice.
Answer:
Both rectangles and squares have four sides of equal length
Where are the triangles :)
<u>Solution-</u>
The equation given here,







But, at x=1,
becomes infinity so it can't be a solution to the equation.
∴ x=1 is the extraneous solution of the equation