SOLUTION: solve by any method you prefer. u^2 - 15u = -1

Algebra ->  Real-numbers -> SOLUTION: solve by any method you prefer. u^2 - 15u = -1      Log On


   

Question 44150: solve by any method you prefer.
u^2 - 15u = -1
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Let's use the quadratic this time...so from
u^2 - 15u = -1
u^2 - 15u + 1 = 0
u = (15 ± sqrt(225 - 4)) / 2
u = (15 ± √221) / 2