The area of a rectangle is 4A ^ 2-2ab + (1 / 4) B ^ 2, one side of which is 4a-b, its perimeter is?

The area of a rectangle is 4A ^ 2-2ab + (1 / 4) B ^ 2, one side of which is 4a-b, its perimeter is?

10a-5b/2

The area of a rectangle is (8a ^ 2B + 4AB ^ 2), the length of one side is 2Ab, and the perimeter is calculated

Width = (8a ^ 2B + 4AB ^ 2) △ 2Ab
=8a^2b÷2ab+4ab^2÷2ab
=4a＋2b
therefore
Perimeter = 2 × [2Ab + 4A + 2B]
=4ab＋8a＋4b

Input your question, known that the area of a rectangle is the square of 4A - 6ab + 2a, one side of which is 2a, find the length of the other side of the rectangle

(4a^2-6ab+2a)/2a
=2a(2a^2-3b+1)/2a
=2a^2-3b+1
The length of the other side is 2A ^ 2-3b + 1

It is known that the area of a rectangle is (A & # 178; - 3AB + 2a) square centimeter. If one side of the rectangle is 2A cm long, its perimeter is

Let the length of the other side be y, then y = (A & # 178; - 3AB + 2a) / 2A
So the perimeter is C = (A & # 178; - 3AB + 2a) / 2A * 2 + 2 * 2A = a-3b + 2 + 4A = 5a-3b + 2

The perimeter of a rectangle is 124cm. Its side length is equal to the width of a rectangle. The area of a rectangle is 1426 square meters?

Your question may be wrong: the perimeter of a square is 124 cm, its side length is equal to the width of a rectangle, and the area of a rectangle is 1426 square cm?
The side length of a square is 124 / 4 = 31 cm
The width of a rectangle is 31 cm
The length of the rectangle is 1426 / 31 = 46 cm

It is known that if the length of a rectangle is (2a + 1) cm and the circumference is (6a + 4) cm, then its area is______ ．

The length of a rectangle is (2a + 1) cm, the perimeter is (6a + 4) cm, the width of a rectangle is: 12 (6a + 4) - (2a + 1) = (a + 1) cm, and its area is: (2a + 1) × (a + 1) = (2A2 + 3A + 1) square cm

It is known that the area of a rectangle is 2A ^ 2 + 4A + 2 (a > 0), and its length is twice its width

Because factorization is available
2a^2 + 4a + 2 = (2a+2)(a+1)
a>0
So the length of the rectangle is 2A + 2 and the width is a + 1
The girth is 2 × (2a + 2 + A + 1) = 2 × (3a + 3) = 6A + 6
Hope it works

The circumference of a rectangle is 4a-6b, and the length of one side is 2a-b. (1). What is the length of the other side? (2). What is the area of the rectangle?

It is known that the circumference of a rectangle is 4A + 3b and the length is 2A + B-3. What is the width?

Let the width be X
According to the meaning and known, there are:
2x+2(2a+b-3)=4a+3b
2x=4a+3b-4a-2b+6
2x=b+6
x=b/2+3
A: the width is B / 2 + 3

It is known that one side of a rectangle is 4A + 3b, and the other side is smaller than it

2(4a+3b+4a+3b-(a-b))
=2(8a+6b-a+b)
=2(7a+7b)
=14a+14b
Hope to help you!