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------- : ---- = ------- × --- =
x^2-9 x-3. x^2-9 1
(x+1)(x-3) x(x-3)+1(x-3)
= ----------- = ------------- =
(x^2-9) 1 x^2-9
x^2-3x+1x-3. x^2-2x-3
= ---------------- = ---------
×^2-9 x^2-9
(x+1)/(x^2-9) : 1/(x-3)
=(x+1)(x-3) / (x+3)(x-3)
=(x+1)/(x+3)
no1 tolong cek soalnya