Сократить дроби три примера

Question

Сократить дроби три примера

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Answer 1

(3х + 9) / 15(х + 3) = 3(х + 3) / 15(х +3) = 1/5
(2x^2 - 2y^2) / 6(x +y) = 2(x^2 - y^2) / 6(x + y) = 2(x + y)(x - y) / 6(x + y) = 1 / 3(x - y)
(x^2 - 4y^2) / (x^2 + 4xy +4y^2) = (x + 2y)(x - 2y) / (x + 2y)^2 = (x - 2y) / (x + 2y)