If the side length of a square is reduced by 2 cm, the area will be reduced by 28 square cm?

If the side length of a square is reduced by 2 cm, the area will be reduced by 28 square cm?

x2-(x-2)2=28
x2-x2+4x-4=28
4x=32
x=8
So the side length of the original square is 8 cm
The area is 64 square centimeters

A rectangle is a meter long and B meter wide. If the width is unchanged and the length is reduced by 3 meters, then its perimeter is reduced by () meters and its area is reduced
A rectangle is a meter long and B meter wide. If the width remains the same and the length is reduced by 3 meters, then its perimeter will be reduced by () meters and its area will be reduced by () square meters. Today, it will be a rectangle

A rectangle is a meter long and B meter wide. If the width remains unchanged and the length decreases by 3 meters, then its perimeter decreases by (3 × 2 = 6) meters and its area decreases by (3b) square meters
I hope I can help you. I wish you progress in your study. If you don't understand, please ask me. If you understand, please adopt it in time! (*^__ ^*)

The length of a rectangle is x meters and the width is y meters. If the width is unchanged and the length is reduced by 2 meters, then its perimeter is reduced______ The area is reduced______ Square meters

A rectangle is x meters long and Y meters wide. If the width remains unchanged and the length decreases by 2 meters, then its perimeter decreases by 4 meters and its area decreases by 2Y square meters