Problem 78 of 7
Use an area model to multiply polynomial factors x-3 and x^2+2x-1.
Hints
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map products to cells and combine like terms.
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Factors must fit a rectangular area/grid product model.
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Solution
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1. Place terms from one factor along rows and the other along columns.
2. Multiply row and column labels for each cell.
3. Combine like cells to get the product.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Adding side labels instead of multiplying row and column labels.