Question

Expand (2x -1)^3 please tell answer​

Answer 1

Answer:

$= > {2x}^{3} - 3 ({2x})^{2} ( - 1) + 3(2x) ({ - 1})^{2} - ( { - 1}^{3} )$

$= > 8 {x}^{3} - 3(4 {x}^{2} ) + 3(2x) - ( - 1)$

$= > 8 {x}^{3} + 12 {x}^{2} + 6x + 1$

hope this helps you:-}

Answer 2

Your Answer⬇

$= {2x}^{3} - 3 ({2x})^{2}( - 1) + 3(2x) { (- 1)}^{2} - ({ - 1}^{3})$

$= {8x}^{3} - 3 ({4x}^{2}) + 3(2x) - ( - 1)$

$= {8x}^{2} - {12x}^{2} +6x + 1$

Hope this will help you...