Solve x2 - 8x - 9 = 0. rewrite the equation so that it is of the form x2 + bx = c.

1. x^2 + -8x = 9

2. for the next part it is add 16

3. after that it is (x - 4)^2 = 25

4. the last one is -1 and 9

Step-by-step explanation:

i know this is wayy late but in case anyone needs it :)

you need a common difference between consecutive terms to be constant, like 1,2,3,4 or 2,4,6,8, or 1,3,6,9

the answer is 8/21

hope this