Find all values of x such that
9 + 27/x - 8/x^2 = 0
If you find more than one value, then list your solutions, separated by commas.
Find all values of x such that 9 + 27/x - 8/x^2 = 0
If you find more than one value, then list your solutions, separated by commas.
9 27 8
––– + ––– – ––– = 0
1 x x2
multiply all the way across by x2
9x2 + 27x – 8 = 0
– 27 + sqrt (729 + 288)
x = –––––––––––––––––––––
18
– 27 + sqrt (1017)
x = –––––––––––––––––
18
– 27 + 3 sqrt (113)
x = –––––––––––––––––
18
x = + 0.27169
x = – 3.27169
.