+0  
 
0
608
2
avatar

x^3=10x

x=?

 Sep 24, 2016
 #1
avatar
+5

Solve for x:
x^3 = 10 x

Subtract 10 x from both sides:
x^3-10 x = 0

Factor x from the left hand side:
x (x^2-10) = 0

Split into two equations:
x = 0 or x^2-10 = 0

Add 10 to both sides:
x = 0 or x^2 = 10

Take the square root of both sides:
Answer: |x = 0    or    x = sqrt(10)    or    x = -sqrt(10)

 Sep 24, 2016
 #2
avatar+37084 
0

error

 Sep 24, 2016
edited by ElectricPavlov  Sep 24, 2016

0 Online Users