1. Special Products
For success in a lot of this mathematics, it is worth knowing these well:
EXAMPLES:
Example 1: Multiply 
Answer:
Example 2: Multiply 
Answer:
Example 3: Multiply 
Answer:
Example 4: Expand 
Here is a LiveMath document to illustrate this.
Normal answer:
Example 5: Expand (y - 6)2
Answer:
Example 6: Expand 
Answer:
Example 7: Expand 
Answer:
Special Products involving Cubes
Example: Expand 
Answer:
Exercises:
Expand:
(1) (s + 2t)(s − 2t)
(2) (i1 + 3)2
(3) (3x + 10y)2
(4) (3p − 4q)2
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