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3-70.

Use a generic rectangle to multiply the following expressions. Write each solution both as a sum and as a product.

  • Draw a generic rectangle and label the length and width.

  • Fill in the grid by multiplying the length and width of each box.



    Write an equation showing the product is the sum of the parts.
    Area as a sum:
    Area as a product:

  • See the help for part (a).

    Area as product:
    Area as sum:

  • See the help for part (a).

  • See the help for part (a).