Question

\(\left(2x-1\right)^2-49-4x^2=0\)

Answer 1

\(\left(2x-1\right)^2-49-4x^2=0.\Leftrightarrow4x^2-4x+1-49-4x^2=0.\Leftrightarrow-4x=48.\Leftrightarrow x=-12.\)

Answer 2

\(\Leftrightarrow4x^2-4x+1-49-4x^2=0\)

=>4x+48=0

hay x=-12

Answer 3

x=-12