Question

Selesaikan persamaan kuadrat
1. 2x² + 7x +6=0
2. 10-3x-x²=0

Answer 1

Penjelasan dengan langkah-langkah:

1. 2x^2 + 7x + 6 = 0

(x + 2) (2x + 3) = 0

x1 = -2 x2 = -3/2

2. -x^2 - 3x + 10 = 0

x^2 + 3x - 10 = 0 (dikali -1)

(x + 5) (x - 2) = 0

x1 = -5 x2 = 2

Answer 2

1. (x+2)(2×+3) = 0

2x2+4x+3x+6 = 0

2x2+7x+6 = 0

2. (5+×) ( 2-×) =0

10+2×-5×-×2 =0

10-3×-×2 =0

jadi jawaban no 1. (×+2)(2×+3)

2.(5+×)(2-×)