Persamaan kuadrat
[tex] {x}^{2} - 7x - 8 = 0 \\ (x - 8)(x + 1) = 0 \\ x1 = 8 \: atau \: x2 = - 1 \\ \\ x 1+ 4 = 8 + 4 = 12 \\ x2 + 4 = - 1 + 4 = 3 \\ Persamaan kuadrat baru \\ (x - x1)(x - x2) = 0 \\ (x - 12)(x - 3) = 0 \\ {x}^{2} - 3x - 12x + 36 = 0 \\ {x}^{2} - 15x + 36 = 0 \: (D)[/tex]
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Persamaan kuadrat
[tex] {x}^{2} - 7x - 8 = 0 \\ (x - 8)(x + 1) = 0 \\ x1 = 8 \: atau \: x2 = - 1 \\ \\ x 1+ 4 = 8 + 4 = 12 \\ x2 + 4 = - 1 + 4 = 3 \\ Persamaan kuadrat baru \\ (x - x1)(x - x2) = 0 \\ (x - 12)(x - 3) = 0 \\ {x}^{2} - 3x - 12x + 36 = 0 \\ {x}^{2} - 15x + 36 = 0 \: (D)[/tex]