Question

Rectangle has a length of x2 + 4 y3 and a breadth of −2x2 + y3. what is its perimeter?

Answer 1

Step-by-step explanation:

this is the solution of your question

Answer 2

Answer:

$- 2{x}^{2} + 10 {y}^{3}$

Step-by-step explanation:

Given,

Length of the rectangle =

${x}^{2} + 4 {y}^{3}$

Breadth of the rectangle =

$- 2{x}^{2} + {y}^{3}$

perimeter of rectangle = 2(length+breadth)

$= 2( {x}^{2} + 4y{ }^{3} { - 2x}^{2} + {y}^{3} )$

$= 2( {x}^{2} { - 2x}^{2} + {4y}^{3} + {y}^{3} )$

$= 2( { - x}^{2} + {5y}^{3} )$

$= - 2{x}^{2} + 10 {y}^{3}$