Precalculus Examples

Simplify (x+1)(x-1)(x-9)
Step 1
Expand using the FOIL Method.
Tap for more steps...
Step 1.1
Apply the distributive property.
Step 1.2
Apply the distributive property.
Step 1.3
Apply the distributive property.
Step 2
Simplify and combine like terms.
Tap for more steps...
Step 2.1
Simplify each term.
Tap for more steps...
Step 2.1.1
Multiply by .
Step 2.1.2
Move to the left of .
Step 2.1.3
Rewrite as .
Step 2.1.4
Multiply by .
Step 2.1.5
Multiply by .
Step 2.2
Add and .
Step 2.3
Add and .
Step 3
Expand using the FOIL Method.
Tap for more steps...
Step 3.1
Apply the distributive property.
Step 3.2
Apply the distributive property.
Step 3.3
Apply the distributive property.
Step 4
Simplify each term.
Tap for more steps...
Step 4.1
Multiply by by adding the exponents.
Tap for more steps...
Step 4.1.1
Multiply by .
Tap for more steps...
Step 4.1.1.1
Raise to the power of .
Step 4.1.1.2
Use the power rule to combine exponents.
Step 4.1.2
Add and .
Step 4.2
Move to the left of .
Step 4.3
Rewrite as .
Step 4.4
Multiply by .