Question

(6p - ⅓)³ expand pls answer this question

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Answer 1

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Using the Formula ,

( a - b )³ = a³ - b³ - 3ab( a + b )

here ,

( 6p - ⅓ )³ = (6p)³ - (⅓)³ - 3×6p×⅓ ( 6p - ⅓ )

= 216p³ - $\dfrac{1}{27}$ - 6p ( 6p - ⅓ )

= 216p³ - $\frac{1}{27}$ - 36p² + 2p

= 216p³ - 36p² + 2p - $\frac{1}{27}$