Question

if the lenth of the square shaped room is (x+-2y)units then find the perimeter and area of the room in the form of algebraic expression

Answer 1

the side of the square ,s=(x-2y)units

therefore, perimeter=4s=4(x-2y)=4x-8y units.


now, area=s²=(x-2y)²=x²-2.x(-2y)+4y²=x²+4xy+4y².

Answer 2

perimeter of square = 4 ×side
perimeter = 4×(x-2y)
=4x-8y
area of square = side × side
area=(x-2y)×(x-2y)
$x {?}^{2} - 4xy + 4y {?}^{2}$