Question

169x(2)-y(2)/y-13x сократить. Даю 15 балов

Answer 1

$\frac{169x^2 -y^2}{y-13x}=\frac{(13x-y)(13x+y)}{y-13x}=\frac{-(y-13x)(13x+y)}{y-13x} = -13x-y$