What is the next term in the sequence?

1,-3,9,-27

Begin by studying the pattern.

Here, notice that 1 * - 3 is equal to - 3.

-3 * - 3 is equal to 9.

9 * - 3 is equal to - 27.

Continuing the same pattern, - 27 * - 3 is equal to 1.

So the next term in the pattern is 81.

So, we multiply by - 3 each time.

You have to multiply negative 3 each time!