Dear Kate,
Hi! Thanks for your letter!I want to tell you about my family.
We are a family of four: my parents, my little brother and me. My parents' names are Bill and Mary. My parents have been maried for fourteen years. They are real friends. My mum has got long fair hair. She is slim. She is kind and hospitable. My father is tall. He has got short black hair. He is helpfull and understanding. I have got a brother. He has got brown hair. He is pretty. We often play different games together.
My family are fond of travvelling. We always travel together.
I love my family!
What about you and yor family? Have you got a little brother?
Take care. Bye-bye.
(своё имя)
Выражение: (2*x-1)*(3*x-2)/6=x^2-(x-6.5)/5
ответ: -(29//30)*x-(29//30)=0
Решаем по действиям:
1. (2*x-1)*(3*x-2)=6*x^2-7*x+2
(2*x-1)*(3*x-2)=2*x*3*x-2*x*2-1*3*x+1*2
1.1. 2*3=6
X2
_3_
6
1.2. x*x=x^2
x*x=x^(1+1)
1.2.1. 1+1=2
+1
_1_
2
1.3. 2*2=4
X2
_2_
4
1.4. -4*x-3*x=-7*x
2. (6*x^2-7*x+2)/6=6*x^2/6-7*x/6+2/6
3. 6/6=1
6.0|6_ _
6_ |1
0
4. 7/6=(7//6)
5. 2/6=(1//3)
6. x^2-x^2=0
7. (x-6.5)/5=x/5-6.5/5
8. -(7//6)*x+x/5=-(29//30)*x
9. 6.5/5=1.3
6.5|5_ _
5_ |1.3
15
1_5_
0
10. (1//3)-1.3=-(29//30)
Решаем по шагам:
1. (6*x^2-7*x+2)/6-x^2+(x-6.5)/5=0
1.1. (2*x-1)*(3*x-2)=6*x^2-7*x+2
(2*x-1)*(3*x-2)=2*x*3*x-2*x*2-1*3*x+1*2
1.1.1. 2*3=6
X2
_3_
6
1.1.2. x*x=x^2
x*x=x^(1+1)
1.1.2.1. 1+1=2
+1
_1_
2
1.1.3. 2*2=4
X2
_2_
4
1.1.4. -4*x-3*x=-7*x
2. 6*x^2/6-7*x/6+2/6-x^2+(x-6.5)/5=0
2.1. (6*x^2-7*x+2)/6=6*x^2/6-7*x/6+2/6
3. x^2-7*x/6+2/6-x^2+(x-6.5)/5=0
3.1. 6/6=1
6.0|6_ _
6_ |1
0
4. x^2-(7//6)*x+2/6-x^2+(x-6.5)/5=0
4.1. 7/6=(7//6)
5. x^2-(7//6)*x+(1//3)-x^2+(x-6.5)/5=0
5.1. 2/6=(1//3)
6. -(7//6)*x+(1//3)+(x-6.5)/5=0
6.1. x^2-x^2=0
7. -(7//6)*x+(1//3)+x/5-6.5/5=0
7.1. (x-6.5)/5=x/5-6.5/5
8. -(29//30)*x+(1//3)-6.5/5=0
8.1. -(7//6)*x+x/5=-(29//30)*x
9. -(29//30)*x+(1//3)-1.3=0
9.1. 6.5/5=1.3
6.5|5_ _
5_ |1.3
15
1_5_
0
10. -(29//30)*x-(29//30)=0
10.1. (1//3)-1.3=-(29//30)
Приводим к окончательному ответу с возможной потерей точности:
Окончательный ответ: -0.966666666666667*x-0.966666666666667=0
По действиям:
1. 29//30~~0.966666666666667
29.0|3_0_ _
2_7_0_|0.966666666666666
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
20
2. 29//30~~0.966666666666667
29.0|3_0_ _
2_7_0_|0.966666666666666
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
20
По шагам:
1. -0.966666666666667*x-(29//30)=0
1.1. 29//30~~0.966666666666667
29.0|3_0_ _
2_7_0_|0.966666666666666
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
20
2. -0.966666666666667*x-0.966666666666667=0
2.1. 29//30~~0.966666666666667
29.0|3_0_ _
2_7_0_|0.966666666666666
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
200
1_8_0_
20
Решаем уравнение -(29//30)*x-(29//30)=0:
Решаем относительно x:
x=(-29//30)/(29//30)=-1.
НИ ПОНЯЛ МОЖНО ПЕРЕВОД