Expanding two parentheses - using arrows
Multiply every term in the first parenthesis by every term in the second.
- Circle each signed term in the first parenthesis.
- Follow the blue arrows from the first term, then the green arrows from the second term.
- Write the products in two rows, lining up terms with the same power of
. - Add down each column, keeping the positive or negative sign with every term.
Example 1
Four products
Expand and simplify.
Example 2
A coefficient on each
Multiply out the parentheses and collect like terms.
Remember
The colors link each circled term to its row of products. Blank spaces keep matching powers aligned; only like terms can be added.
Your turn
5 practice questions0 of 5 answers checked
Question 1
Expand and simplify.
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Question 2
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Question 3
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Question 4
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Question 5
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Expand and simplify.
Expand and simplify.
Expand and simplify.
Expand and simplify.
Expand and simplify.