Algebra Examples

Find the Roots (Zeros) f(x)=(x^2-1)/(x^2+3x+2)
Step 1
Set equal to .
Step 2
Solve for .
Tap for more steps...
Step 2.1
Set the numerator equal to zero.
Step 2.2
Solve the equation for .
Tap for more steps...
Step 2.2.1
Add to both sides of the equation.
Step 2.2.2
Take the specified root of both sides of the equation to eliminate the exponent on the left side.
Step 2.2.3
Any root of is .
Step 2.2.4
The complete solution is the result of both the positive and negative portions of the solution.
Tap for more steps...
Step 2.2.4.1
First, use the positive value of the to find the first solution.
Step 2.2.4.2
Next, use the negative value of the to find the second solution.
Step 2.2.4.3
The complete solution is the result of both the positive and negative portions of the solution.
Step 2.3
Exclude the solutions that do not make true.
Step 3