1.Germaniya declared war on the Soviet Union in 1941. 2.Ty already paid the bill? I can not pay for the book now. 3.He says that states are interested in history, but never heard of the Villa of Rights. 4.In the constitutions of all 26 amendments, and each of them is special. 5.Lyudi all the world are fighting for peace against war. 6.They often judge our school sports competitions. 7.Sudya by what people are saying about him, he's a great friend. 8.Konstitutsiya was signed in 1787 in Philadelphia. 9.Tishina in court!
1.Germaniya declared war on the Soviet Union in 1941. 2.Ty already paid the bill? I can not pay for the book now. 3.He says that states are interested in history, but never heard of the Villa of Rights. 4.In the constitutions of all 26 amendments, and each of them is special. 5.Lyudi all the world are fighting for peace against war. 6.They often judge our school sports competitions. 7.Sudya by what people are saying about him, he's a great friend. 8.Konstitutsiya was signed in 1787 in Philadelphia. 9.Tishina in court!
21х^2 - 84x - 42x + 168 = 0
21x^2 -126x + 168 = 0
x^2 - 6x + 8 = 0
D = 36 - 4 ( 8) = 36 - 32 = 4; YD = 2
x1 = (6 +2) / 2 = 4
x2 = (6 - 2) / 2 = 2
ответ: х1 = 4
х2 = 2