Persamaan kuadrat
[tex] {x}^{2} - (x1 + x2)x + (x1 \times x2) = 0 \\ {x}^{2} - ( - 10 + 5)x + ( - 10 \times 5) = 0 \\ {x}^{2} + 5x - 5 0= 0[/tex]
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Persamaan kuadrat
[tex] {x}^{2} - (x1 + x2)x + (x1 \times x2) = 0 \\ {x}^{2} - ( - 10 + 5)x + ( - 10 \times 5) = 0 \\ {x}^{2} + 5x - 5 0= 0[/tex]