using identity solve 4 Cube + 3 Cube + 2 - 5 Cube + 2 cube + 1 cube
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sry I don't know this answer my brainly frnd
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Quora. The formula is (a-b)³=a³-3a²b+3ab²-b³. You convert it to (a-b)³=a³-3ab(a-b)-b³ for an illustration. ... You take the drawing of the formula (a+b)³=a³+3a²b+3ab²+b³ from above and replace a by the difference a-b.
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