tentukan persamaan kuadrat berikut dengan metode pemfaktoran a.X2 +3 -10=0, b.x2 – 4 =0, c.2x² -5x -12 =0​

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tentukan persamaan kuadrat berikut dengan metode pemfaktoran a.X2 +3 -10=0, b.x2 – 4 =0, c.2x² -5x -12 =0​

Penjelasan dengan langkah-langkah:

{x}^{2} + 3x - 10 = 0 \ (x + 5)(x - 2) = 0 \ x + 5 = 0 \ x _{1} = - 5 \ x - 2 = 0 \ x_{2} = 2

{x}^{2} - 4 = 0 \ (x + 2)(x - 2) = 0 \ x + 2 = 0 \ x_{1} = - 2 \ x - 2 = 0 \ x_{2} = 2

{2x}^{2} - 5x - 12 = 0 \ (2x + 3)(x - 4) = 0 \ 2x + 3 = 0 \ 2x = - 3 \ x_{1} = - frac{3}{2} \ x - 4 = 0 \ x_{2} = 4