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8-7.

Multiply the expressions below using a generic rectangle. Then verify Casey's pattern (that the product of one diagonal equals the product of the other diagonal). Homework Help ✎

  1. 12x² + 17x − 5

    12x²(−5) = −3x(20x)
    −60x² = −60x²

  1. (2x − 7)² = (2x − 7)(2x − 7)