Question

сократите дроби, пожалуйста

Answer 1

7(x+4)/(x-4)(x+4)=7/(x-4)
(n-m)²/5(n-m)(n+m)=(n-m)/5(n+m)

Answer 2

(7x+28)/(x²-16)= 7(x+4)/(x-4)(x+4)= 7/(x-4)
(m²-2mn+n²)/(5n²-5m²)=(m-n)²/5(m+n)(m-n)=(m-n)/5(m+n)