f(x) = -2x² - 2x + 12
Penjelasan dengan langkah-langkah:
memotong skumbu y di (0,12) maka c = 12
(x -(-3))(x -2) = (x + 3)(x - 2)
= x² - 2x + 3x -6
= x² + x - 6
karena c 12, maka semua dikali (12/-6) = -2
f(x) = -2(x² + x - 6)
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f(x) = -2x² - 2x + 12
Penjelasan dengan langkah-langkah:
memotong skumbu y di (0,12) maka c = 12
(x -(-3))(x -2) = (x + 3)(x - 2)
= x² - 2x + 3x -6
= x² + x - 6
karena c 12, maka semua dikali (12/-6) = -2
f(x) = -2(x² + x - 6)
f(x) = -2x² - 2x + 12