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*Titik potong dgn sumbu X
2x²+2x-4 = 0 (dibagi 2)
(2x-2)(x+2) = 0
x = 1 dan x = -2
(1,0) dan (-2,0)
*Titik potong dgn sumbu Y = (0,-5)
*sumbu simetri
x = -b/2a = -2/2(2) = -0,5
*nilai maks/min
y = D/4b
y = -36/4(2)
y = -4,5
*Koor. titik puncak = (-0.5,-4.5)
kalau menurut aku sih begitu
maaf kalau salah