To solve:
(x-10)(x-10)
Answer: x^2-20x+100
4(610-15)+0.4
first you have to distribute the 4 to what is inside the paranthesis
(4×610)-(4×15)+0.4
2440-60+0.4=2380.4
Answer:
exact form:
![x=\frac{11}{5}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B11%7D%7B5%7D)
Decimal:
![x=2.2](https://tex.z-dn.net/?f=x%3D2.2)
Mixed Number Form:
![x=2\frac{1}{5}](https://tex.z-dn.net/?f=x%3D2%5Cfrac%7B1%7D%7B5%7D)
Step-by-step explanation:
simplify ![2(x + 6) + 4](https://tex.z-dn.net/?f=2%28x%20%2B%206%29%20%2B%204)
![2(x + 6) + 4 = 12x - 6](https://tex.z-dn.net/?f=2%28x%20%2B%206%29%20%2B%204%20%3D%2012x%20-%206)
Move all terms containing x to the left side of the equation.
![-10x+1=-6](https://tex.z-dn.net/?f=-10x%2B1%3D-6)
Move all terms not containing x to the right side of the equation.
![-10x=-22](https://tex.z-dn.net/?f=-10x%3D-22)
Divide each term by −
10 and simplify.
![x=\frac{11}{5}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B11%7D%7B5%7D)
the result can be shown in multiple forms
Exact Form: ![x=\frac{11}{5}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B11%7D%7B5%7D)
Decimal Form: ![x=2.2](https://tex.z-dn.net/?f=x%3D2.2)
and Mixed Number Form: ![x=2\frac{1}{5}](https://tex.z-dn.net/?f=x%3D2%5Cfrac%7B1%7D%7B5%7D)
Системой двух уравнений решайте
2х+3м+4ч -30000 = 1x+3м+5ч
2х+3м+4ч-1x-3м-5ч=30 000
1х-1ч=30000
то есть 1 холодильник дороже 1 чайника на 30 000 как раз