Middle School Math Solutions – Expand Calculator, Two Squares. The difference of two squares is an application of the FOIL method (refer to our blog post on the FOIL method).

Step 1 – Multiply out the first two brackets (use FOIL) Step 2 – Multiply the result x^2 +3x+2 x2 + 3x + 2 by (3x+3) (3x + 3) This requires \bf {6} 6 separate multiplications, shown below. Finally

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