Question

Сократите дроби:
5x( x-y) / x^3 (y-x)

3a-36/ 12b- ab

8b^2-8a^2 / a^2-2ab + b2

Answer 1

5x( x-y) / x^3 (y-x)
$frac{-5x(y-x)}{ x^{3}(y-x) } =- frac{5}{ x^{2} }$

3a-36/ 12b- ab
$frac{3(a-12)}{b(12-a)} = frac{-3(12-a)}{b(12-a)} =- frac{3}{b}$

8b^2-8a^2 / a^2-2ab + b2
$frac{8( b^{2} - a^{2} )}{(a-b)^{2} } = frac{8(b-a)(b+a)}{(a-b)(a-b)} = frac{-8(a-b)(b+a)}{(a-b)(a-b)} = - frac{8b+a}{a-b}$