Question

сократите дробь (m-n)^2/(n^2-m^2)

Answer 1

(m-n)²/(n²-m²)=(n-m)²/[(n-m)(n+m)]=(n-m)/(n+m)

Answer 2

минус же забыла

Answer 3

(m-n)²/(n²-m²)=-(n-m)²/[(n-m)(n+m)]=-(n-m)/(n+m)

Answer 4

$= - frac{(m-n)^{2}} {m ^{2}-n^{2}} = frac{(m-n)^{2}} {(m-n) - (m + n)} = frac{m-n}{m+n}$