The square below has an area of 22 - 10.2 + 25 square meters.

What expression represents the length of one side of the square?

Side length

- 10x + 25

Side length

meters

x = 1.89

Step-by-step explanation:

Solve 22 - 10.2 + 25 to get 36.8 as the square's area.

Set up the equation 36.8 = (-10x + 25) ^2 to represent the relationship between one side length and the area.

Reverse the equation to solve for x! Find the square root of both sides to cancel out the exponent. This gets you: 6.07 = - 10x + 25.

Subtract 25 from both sides, then divide by - 10 to get x by itself.

x = 1.89