Answer:6.54
Step-by-step explanation:please give me brainliest
Perimeter of a rectangle = 6x + 8
Solution:
Given area of a rectangle = ![2x^2+7x+3](https://tex.z-dn.net/?f=2x%5E2%2B7x%2B3)
Let us first factor the given polynomial.
![2x^2+7x+3=2x^2+x+6x+3](https://tex.z-dn.net/?f=2x%5E2%2B7x%2B3%3D2x%5E2%2Bx%2B6x%2B3)
![=(2x^2+x)+(6x+3)](https://tex.z-dn.net/?f=%3D%282x%5E2%2Bx%29%2B%286x%2B3%29)
Taking out common terms in the above expression
Taking out common term
in the above expression
![=(2x+1)(x+3)](https://tex.z-dn.net/?f=%3D%282x%2B1%29%28x%2B3%29)
![2x^2+7x+3=(2x+1)(x+3)](https://tex.z-dn.net/?f=2x%5E2%2B7x%2B3%3D%282x%2B1%29%28x%2B3%29)
Area of a rectangle = l × b
Therefore,
and ![b=x+3](https://tex.z-dn.net/?f=b%3Dx%2B3)
Perimeter of a rectangle = 2(l + b)
![=2[(2x+1)+(x+3)]](https://tex.z-dn.net/?f=%3D2%5B%282x%2B1%29%2B%28x%2B3%29%5D)
![=2(2x+1+x+3)](https://tex.z-dn.net/?f=%3D2%282x%2B1%2Bx%2B3%29)
![=2(3x+4)](https://tex.z-dn.net/?f=%3D2%283x%2B4%29)
![=6x+8](https://tex.z-dn.net/?f=%3D6x%2B8)
The answer is same if you take <em>l</em> = x + 3 and <em>b</em> = 2x + 1.
Hence, perimeter of a rectangle = 6x + 8.
Answer:
The answer would be 15
x = 15
Step-by-step explanation:
6x = 5x +15
Subtract 5x from both sides
x = 15
Try testing now by putting in the value
6(15) = 5(15) + 15
Distributive Property
90 = 75 + 15
Add
90 = 90
Now you know for a fact that this answer is correct.
Heres some info i learend
s but its not complete maybe i guess
Terms. We combine em by adding. The numbers or subtracting the numbers that are multiplied times the radicals.