Question

(2x+1)^3 me ajudem por favor!!!

Answer 1

= (2x + 1)³

= (2x + 1)².(2x + 1)

= (4x² + 2.2x + 1).(2x + 1)

= (4x² + 4x + 1).(2x + 1)

= 4x².2x + 4x².1 + 4x.2x + 4x.1 + 1.2x + 1.1

= 8x³ + 4x² + 8x² + 4x + 2x + 1

= 8x³ + 12x² + 6x + 1