1. Special Products

For success in a lot of this mathematics, it is worth knowing these well:

math expression

 

EXAMPLES:

Example 1: Multiply math expression

Answer:

math expression

Example 2: Multiply math expression

Answer:

math expression

Example 3: Multiply math expression

Answer:

math expression

Example 4: Expand math expression

Here is a LiveMath document to illustrate this.

LIVEMath

Normal answer:

math expression

Example 5: Expand (y - 6)2

Answer:

math expression

Example 6: Expand math expression

Answer:

math expression

Example 7: Expand math expression

Answer:

math expression

 

Special Products involving Cubes

math expression

 

Example: Expand math expression

Answer:

math expression

 

Exercises:

Expand:

(1) (s + 2t)(s − 2t)


Answer

(2) (i1 + 3)2


Answer

(3) (3x + 10y)2


Answer

(4) (3p − 4q)2


Answer



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