Question

expand (2-4x)^2
using​

Answer 1

$\huge\bigstar\sf\red{Answer:}$

$\sf{According \ to \ the \ identity}$

$\sf{(a-b)^{2}=a^{2}+b^{2}-2ab}$

$\sf{\therefore{(2-4x)^{2}=4+16x^{2}-16x}}$

$\sf{=4+16x(x-1).}$