Question

-2, 10, -50. Find the next two terms of this sequence. Give exact values (not decimal approximations)

Answer 1

250 and - 1250

This is a geometric sequence with common ratio r = - 5

multiply each term by - 5 to obtain the next term

- 50 × - 5 = 250

250 × - 5 = - 1250

the sequence is - 2, 10, - 50, 250, - 1250

Answer 2

-20, 10, -50, 250, -1250 is the answer