Finite Math Examples

Find the Roots (Zeros) f(x)=(x^2-13x+36)/(x^2-64)
Step 1
Set equal to .
Step 2
Solve for .
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Step 2.1
Set the numerator equal to zero.
Step 2.2
Solve the equation for .
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Step 2.2.1
Factor using the AC method.
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Step 2.2.1.1
Consider the form . Find a pair of integers whose product is and whose sum is . In this case, whose product is and whose sum is .
Step 2.2.1.2
Write the factored form using these integers.
Step 2.2.2
If any individual factor on the left side of the equation is equal to , the entire expression will be equal to .
Step 2.2.3
Set equal to and solve for .
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Step 2.2.3.1
Set equal to .
Step 2.2.3.2
Add to both sides of the equation.
Step 2.2.4
Set equal to and solve for .
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Step 2.2.4.1
Set equal to .
Step 2.2.4.2
Add to both sides of the equation.
Step 2.2.5
The final solution is all the values that make true.
Step 3