Question

Choose the equation that models the following problem.

When the side of a square is doubled, its area is increased to 28 cm^2.

Answer 1

`(2x)^2=28`

Explanation:

The equation for the area of a square is
`(x)^2=A`

In this case, the value within the parenthesis are the lengths of each side.

As you are doubling the length of the side and know the area, the equation can be written as follows

`(2x)^2=28`