SOLUTION: divide -16bwith b having an exponet of 3 = 10b -___________ ___________ ___________ __ -2b

Algebra ->  Equations -> SOLUTION: divide -16bwith b having an exponet of 3 = 10b -___________ ___________ ___________ __ -2b      Log On


   

Question 630261: divide -16bwith b having an exponet of 3 = 10b
-______________________________________
-2b
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Assume the problems is
%28-16b%5E3%29%2F%28-2b%29 = 10b
multiply both sides by -2b
-16b%5E3 = -2b(10b)
-16b%5E3 = -20b%5E2
Divide both sides by -4b^2, resulting in
4b = 5
b = 5%2F4
b = 1.25
:
Check solution in original equation
%28-16%281.25%5E3%29%29%2F%28-2%281.25%29%29 = 10(1.25)