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Problem 2 - Entrance Test

Simplify (2x - 3)(x + 4).

A. 2x² + 5x - 12B. 2x² - 12C. 2x² + 8x - 12D. 2x² + x - 12

Correct: A

Use FOIL: 2x·x + 2x·4 - 3·x - 3·4 = 2x² + 8x - 3x - 12 = 2x² + 5x - 12.