Resolviendo ecuaciones cuadraticas MA.2.2.4 _ V2

• a = 3, b = 7 c = -21

• a = -21, b = 3 c = 7

• a = 3, b = 7 c = -20

• a = 3, b = 7 c = 1

• a = 1, b = 7, c = 12

• a = 12, b = 1, c =7

• a = 7, b = 1, c = 12