Hamilton Guzman
05/15/2023 · Middle School

\( f(x)=2x\times 4x=12 \)

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Fungsi yang diberikan adalah \( f(x) = 2x \times 4x = 12 \). Mari kita sederhanakan fungsi tersebut: \[ f(x) = 8x^2 \] Kemudian, kita ingin mencari nilai \( x \) ketika \( f(x) = 12 \): \[ 8x^2 = 12 \] Sekarang, kita bagi kedua sisi dengan 8: \[ x^2 = \frac{12}{8} = \frac{3}{2} \] Selanjutnya, kita ambil akar kuadrat dari kedua sisi: \[ x = \pm \sqrt{\frac{3}{2}} = \pm \frac{\sqrt{3}}{\sqrt{2}} = \pm \frac{\sqrt{6}}{2} \] Jadi, solusi untuk persamaan \( f(x) = 12 \) adalah: \[ x = \frac{\sqrt{6}}{2} \quad \text{atau} \quad x = -\frac{\sqrt{6}}{2} \]

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\( x = \frac{\sqrt{6}}{2} \) atau \( x = -\frac{\sqrt{6}}{2} \)
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