Question

(2x+3).(10x+2)=(5x+2).(4x+5)

Answer 1

\(\left(2x+3\right)\cdot\left(10x+2\right)=\left(5x+2\right)\cdot\left(4x+5\right)\)

\(\Leftrightarrow20x^2+4x+30x+6-20x^2-25x-8x-10=0\)

\(\Leftrightarrow x-4=0\)

\(\Leftrightarrow x=4\)

Answer 2

\(< =>20x^2+4x+30x+6=20x^2+25x+8x+10\)

\(< =>34x+6-25x-8x-10=0\)

\(< =>x-4=0< =>x=4\)