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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 4 - No. 3)
What is the result of expanding -7(2x + 1)?
-14x + 7
-14x - 7
14x - 7
14x + 7
Forklaring
-7(2x+1)=-7*2x -7*1=-14x-7
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