SOLUTION: Solve the equation. {{{ 5x^4-16=0}}}

Algebra ->  Equations -> SOLUTION: Solve the equation. {{{ 5x^4-16=0}}}      Log On


   

Question 784143: Solve the equation.
+5x%5E4-16=0
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
5x^4-16=0
5x^4=16
x^4= 16/5
Take fourth root of both sides.
x = fourthroot(16/5)
x = 2/forthroot(5)
Multiply the top and bottom of right side fraction by the fourthroot of 5
x = 2(4throot{5})/sqrt{5}