Mathematics for IGCSE & O level - Algebraic Manipulation (Section 5 - No. 23)

What is the result of expanding -2(x - 3)?

-2x - 6

-2x + 6

2x - 6

2x + 6

解释

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

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