f(x) = -x^2 +4x -12 =
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" JAWABAN "
f(x) = -x^2 +4x -12 = Fungsi : Bukan Intercept - X/Nol
" PEMBAHASAN "
[tex]fungsi \: \\ f(x) = - {x}^{2} + 4x - 12 = \\ = 0 = { - x}^{2} + 4x - 12 \\ = - x {}^{2} + 4x - 12 = 0 \\ = - 1 \times( - x {}^{2} ) - x \times 4x - 1x( - 12) \\ = - 1 \times 0 \\ = {x}^{2} - 1 \times 4x - 1 \times ( - 12) = - 1 \times 0 \\ = {x}^{2} - 4x + 12 = 0 \\ x = \frac{ - ( - 4) + \sqrt{( - 4) {}^{2} - 4 \times 1 \times 12 } }{2 \times 1} \\ x= \frac{4 + \sqrt{16 - 48} }{2} \\ = x = \frac{4 + \sqrt{ - 32 } }{2} \\ = x \: e \: r \\ = bukan \: intercept - x \: per \: nol[/tex]
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