Question

expand (2x/3+1)³ please solve​

Answer 1

( 2x/3 + 1 ) ³

Using the identity

• ( a + b ) ³ = a³ + 3a²b + 3ab² + b³

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

8x³/27 + 3 x 4x²/9 + 2x x 1 + 1

8x³/27 + 4x²/3 + 2x + 1

LCM = 27

( 8x³ + 36x² + 54x + 27 ) / 27