Question

сократите дробь a2-25/a2-10a+25

Answer 1

$\frac{ {a}^{2} - 25}{ {a}^{2} - 10a + 25} =\frac{ (a - 5)(a + 5) }{ (a - 5) {}^{2} } = \frac{a + 5}{a - 5}$