Question

write the formula of a³-b³​

Answer 1

Answer:

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Step-by-step explanation:

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. Then the edges are (a-b)+b with different combinations (on the left).

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Answer 2

a³-b³= (a-b)(a²+ab+ b²)

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