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1. The water tank of Max is in the shape of a cube. If an edge has length (4x - 1) cm, find the
volume of water it can contain. Volume = s³​

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Answer:

(a-b)³ = a³ - 3a²b + 3ab² - b³

let a= 4x ; b = 1

(4x - 1)³ = (4x)³ - 3(4x)²(1) + 3(4x)(1)² - 1³

= 64x³ - 12x² + 12x - 1

volume = 64x³ - 12x² + 12x - 1

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