Please bantu bsk dikumpul
1) x² + 8x – 20 = 0 ===> (x + 10)(x – 2) = 0
x + 10 = 0 ===> x₁ = -10
x – 2 = 0 ====> x₂ = 2
2) x² + 6x + 8 = 0 ===> (x + 4)(x + 2) = 0
x + 4 = 0 ===> x₁ = -4
x + 2 = 0 ===> x₂ = -2
3) x² – 2x – 24 = 0 ===> (x – 6)(x + 4) = 0
x – 6 = 0 ===> x₁= 6
x + 4 = 0 ===> x₂ = -4
4) x² – x – 6 = 0 ===> (x – 3)(x + 2) = 0
x – 3 = 0 ===> x₁ = 3
x + 2 = 0 ===> x₂ = -2
5) x² – 7x + 12 = 0 ===> (x – 4)(x – 3) = 0
x – 4 = 0 ===> x₁ = 4
x – 3 = 0 ===> x₂ = 3
6) x² + 2x – 35 = 0 ===> (x +7)(x – 5) = 0
x + 7 = 0 ===> x₁ = -7
x – 5 = 0 ===> x₂ = 5
7) x² – 25 = 0 ===> (x – 5)(x + 5) = 0
x – 5 = 0 ===> x₁ = 5
x + 5 = 0 ===> x₂ = -5
8) 2x² – ….maaf, angkanya tdk jelas
9) 2x² + 6x – 8 = 0 ===> (2x – 2)(x + 4) = 0
2x – 2 = 0 ===> 2x = 2 ===> x₁ = 1
x + 4 = 0 ===> x₂ = -4
10) 3x² – 7x + 2 = 0 ===> (3x – 1)(x – 2) = 0
3x – 1 = 0 ===> 3x = 1 ===> x₁ = 1/3
x – 2 = 0 ===> x₂ = 0
semoga jelas dan membantu ya dan maaf utk no. 8 angkanya kurang jelas