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=(-x²-2x+35) : (x²-25)
=-(x-5) (x+7) : (x-5) (x+5)
=-(x+7) : (x+5)
= -x-7 : x+5
x² - 25
= (x + 7)(-x + 5)
(x + 5)(x - 5)
= (x + 7) -1(x - 5)
(x + 5)(x - 5)
= (x + 7) -1
(x + 5)
= - x - 7
x + 5
Maaf kalau salah