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Example 6.54 from Elementary Algebra, 6.4 Special Products
Special Products: example 6.54
Find the product:
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
Solution
It is the product of conjugates. Use the pattern. Simplify.
Your turn
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Multiply:
How did it go?