1.

Verify a minus b whole cube ​

Answer»

(a - b)³

as we KNOW

(a - b)³ = (a - b) (a - b) (a - b)

= and here by the multiplying TWO (a - b) we get

= a² + b² - 2ab × (a - b)

= a³ - a²b + ab² - b³ - 2a²b + 2ab²

= a³ - b³ - 3a²b + 3ab² ( VERIFIED )



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