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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 4 - No. 16)

What is the result of expanding and simplifying (x + 2)(x - 3)?
x² - x - 6
x² + x - 6
x² - 5x + 6
x² + 5x + 6

解释

(x + 2)(x - 3) = x² -3x + 2x -6 = x² -x -6

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