Math, asked by aryantalpade9, 10 months ago

(2x+1/4) whole cube ans?

Answers

Answered by HHM14
1

8x³ + 1/64 + 3x² + 3x/8

Step-by-step explanation:

(2× + 1/4)³

(a+b)³ = a³ + b³ + 3ab(a + b)

= (2x)³ + (1/4)³ + 3(2x)(1/4)(2x + 1/4)

= 8x³ + 1/64 + 3(2x/4)(2x + 1/4)

= 8x³ + 1/64 + 6x/4(2x + 1/4)

= 8x³ + 1/64 + 12x²/4 + 6x/16

= 8x³ + 1/64 + 3x² + 3x/8

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