Question

609/х - 522/х+1 решить

Answer 1

$frac{609}{x} - frac{522}{x+1} = frac{609*(x+1)}{x(x+1)} - frac{522*x}{x(x+1)} = \ \ frac{609x+609-522x}{x(x+1)} = frac{87x+609}{x(x+1)} = frac{87(x+7)}{x(x+1)}$