Question

Expand (2x - 1) using suitable identity.​

Answer 1

Answer:

the question is incomplete .it should be whole cube

Step-by-step explanation:

use identity (a+b)^3=a3+b3+3a2b+3ab2

and put the values.

hope it may be helpful

Answer 2

Answer:

$\huge\bold\red{ANSWER}$

Step-by-step explanation:

$\blue{\bold{\underline{\underline{SOLUTION }}}}$

$\implies \sf (2x-1)=0\\ \\ \implies \sf 2x=1\\ \\ \implies \sf x=1/2 \: is \: your\:answer$