Question

Tìm x biết\(\frac{2x+3}{5x+2}=\frac{4x+5}{10x+2}\)

Answer 1

 (2X+3)(10X+2) = (5X+2)(4X+5)

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

x = 4