Matematika tolong di jawabmateri persamaan kuadratkls: 10​

annabellmcdermottulv – June 08, 2023

tolong di jawab
materi persamaan kuadrat
kls: 10
​

Jawaban:

[tex]1a). \: {x }^{2} - 3x - 10 = 0 \\ (x - 5)(x + 2) = 0 \\ x - 5 = 0 \: \: = > \: x = 5 \\ x + 2 = 0 \: \: = > x = - 2 \\ hp( - 2 \: . \: 5)[/tex]

[tex]1b). \: 2 {x}^{2} + 5x - 12 = 0 \\ (2x + 8)(2x - 3) = 0 \\ 2x + 8 = 0 \: \: = > 2x = - 8 \: \: = > x = \frac{ - 8}{2} = - 4 \\ 2x - 3 = 0 \: \: = > 2x = 3 \: \: = > x = \frac{3}{2} \\ hp( - 4 \: . \: \frac{3}{2} )[/tex]

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