Precalculus Examples

Solve the Function Operation f(x)=-x+5 g(x)=x^2-x-4 Find: (fog)(x)
Find:
Step 1
Set up the composite result function.
Step 2
Evaluate by substituting in the value of into .
Step 3
Simplify each term.
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Step 3.1
Apply the distributive property.
Step 3.2
Simplify.
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Step 3.2.1
Multiply .
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Step 3.2.1.1
Multiply by .
Step 3.2.1.2
Multiply by .
Step 3.2.2
Multiply by .
Step 4
Add and .