Question

.Упростите выражение 4x/3(x+1) - (x-1)/(x+1)

Answer 1

$frac{4x}{3(x+1)} - frac{x-1}{x+1} = frac{4x-3(x-1)}{3(x+1)} = frac{4x-3x+3}{3(x+1)} = \ \ = frac{x+3}{3(x+1)} = frac{(x+1)+2}{3(x+1)} = frac{1}{3} + frac{2}{3(x+1)}$