Answer:
(2x+1)(1x+2) = 2x^2 + 4x + x + 2 = 2x^2 + 5x + 2
i think
Step-by-step explanation:
Given:
The perimeter of a rhombus of side d cm is

To find:
The perimeter of a rhombus of side 3.2 cm.
Find the length of a side of a rhombus of perimeter 14 cm.
Solution:
Side of a rhombus is 3.2 cm. So, its perimeter is


Therefore, the perimeter of a rhombus of side 3.2 cm is 12.8 cm.
The perimeter of another rhombus is 14 cm, and we need find its side.


Divide both sides by 4.


Therefore, the length of a side of a rhombus of perimeter 14 cm is 3.5 cm.
Answer:
The correct option is c) n=5.
Therefore the solution to

is

Step-by-step explanation:
Given:

To Find;
n = ?
Solution:
........Given
Add + n to both the side

Now Subtract 4 on both the side

Dividing by 4 on both side

Therefore the solution to

is

The answer of this question is A. -112