Choose all the equations which are correctly solved. x2 - 5x + 5 = 0 {2,3}
x2 - 7x - 8 = 0 {-1,8}
x2 + 12x + 20 = 0 {-2, -10}
x2 – 3x – 10 = 0 {2, 10}
x2 + x + 20 = 0 {4,5}