Question

(2x+1)^2(2x-3)(2x+3)=14

 

Answer 1

\(\left(2x+1\right)^2-\left(2x-3\right)\left(2x+3\right)=14\\ \Leftrightarrow4x^2+4x+1-4x^2+9=14\\ \Leftrightarrow4x=4\\ \Leftrightarrow x=1\)