Question

algebraic expressions ​

Answer 1

Answer:

$lengh = 4 {x}^{2} + 5y - 3 \\ \\ breadth = 3 {x}^{2} - 2y + 2 \\ \\ perimeter \: of \: rectangle = 2(l + b) \\ \\ = 2((4 {x}^{2} + 5y - 3) + (3 {x}^{2} - 2y + 2)) \\ \\ = 2(4 {x}^{2} + 5y - 3 + 3 {x}^{2} - 2y + 2) \\ \\ = 2(4 {x}^{2} + 3 {x}^{2} + 5y - 2y - 3 + 2) \\ \\ = 2(7 {x}^{2} + 3y - 1) \\ \\ = 14 {x}^{2} + 6y - 2 \\ \\ \\ this \: is \: the \: correct \: answer$