(2x+1/3x)^3 (ans = 8x^3 +4x +2/3x+1/27x^3) chapter expansion
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Step-by-step explanation:
(2x + 1/3x)³
=(2x) ³ + 3(2x)²(1/3x) + 3(2x)(1/3x)² + (1/3x)³
= 8x³ + 4x + 2x*3/9x² + 1/3³x³
=8x³ + 4x + 2/3x + 1/27x³
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