Diketahui :
f(x) = x – 3
g(x) = 2x2 – 6x
b(x) = x2 – 9
m(x) = 2x2 – x – 15
(f(x))/(m(x)) = … .
A. (x-3)/(2x+5)
B. (x-3)/(2x-5)
C. x/(2x+5)
D. 1/(2x+5)
E. 1/(2x-5)
f(x) = x – 3
g(x) = 2x2 – 6x
b(x) = x2 – 9
m(x) = 2x2 – x – 15
(f(x))/(m(x)) = … .
A. (x-3)/(2x+5)
B. (x-3)/(2x-5)
C. x/(2x+5)
D. 1/(2x+5)
E. 1/(2x-5)
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f(x) = x-3
m(x) = 2x²-x-15
Maka
f(x) ÷ m(x) =
(x-3) ÷ (2x²-x-15) =
(x-3) ÷ (½(2x....)(2x....)) =
(x-3) ÷ (x²-x-15(2)) =
(x-3) ÷ (x²-x-30) =
dua faktor yg saat dikali = -30
ditambah = -1, adalah
-6 dan 5
(x-3) ÷ (½(2x-6)(2x+5)) =
(x-3) ÷ ((x-3)(2x+5)) =
¹/₂ₓ₊₅
jawaban D. ¹/₂ₓ₊₅