Pre-Algebra Examples

Simplify (a-3b)(a+3b)
Step 1
Expand using the FOIL Method.
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Step 1.1
Apply the distributive property.
Step 1.2
Apply the distributive property.
Step 1.3
Apply the distributive property.
Step 2
Simplify terms.
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Step 2.1
Combine the opposite terms in .
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Step 2.1.1
Reorder the factors in the terms and .
Step 2.1.2
Subtract from .
Step 2.1.3
Add and .
Step 2.2
Simplify each term.
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Step 2.2.1
Multiply by .
Step 2.2.2
Rewrite using the commutative property of multiplication.
Step 2.2.3
Multiply by by adding the exponents.
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Step 2.2.3.1
Move .
Step 2.2.3.2
Multiply by .
Step 2.2.4
Multiply by .