Question
Solve the equation
Solve for x
x1=−121,x2=0,x3=121
Alternative Form
x1=−0.083˙,x2=0,x3=0.083˙
Evaluate
x2−16x4×9=0
Multiply the terms
x2−144x4=0
Factor the expression
x2(1−144x2)=0
Separate the equation into 2 possible cases
x2=01−144x2=0
The only way a power can be 0 is when the base equals 0
x=01−144x2=0
Solve the equation
More Steps

Evaluate
1−144x2=0
Move the constant to the right-hand side and change its sign
−144x2=0−1
Removing 0 doesn't change the value,so remove it from the expression
−144x2=−1
Change the signs on both sides of the equation
144x2=1
Divide both sides
144144x2=1441
Divide the numbers
x2=1441
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±1441
Simplify the expression
More Steps

Evaluate
1441
To take a root of a fraction,take the root of the numerator and denominator separately
1441
Simplify the radical expression
1441
Simplify the radical expression
121
x=±121
Separate the equation into 2 possible cases
x=121x=−121
x=0x=121x=−121
Solution
x1=−121,x2=0,x3=121
Alternative Form
x1=−0.083˙,x2=0,x3=0.083˙
Show Solution