Question 96707
Refer to a rectangle Find an expression that represents its perimeter
on top of the rectangle. (Not sure what "on top of the rectangle" means)
:
:
Anyway:
A rectangle that is {{{((2x-1))/5}}} by {{{4/((3x+1))}}}
:
P = 2{{{((2x-1)/5)}}} + 2{{{(4/(3x+1))}}}
:
P = {{{((4x-2))/5}}} + {{{8/((3x+1))}}}
:
Arrange over a single denominator:
P = {{{((3x+1)(4x-2)+5(8))/(5(3x+1))}}} = {{{((12x^2-2x-2)+40)/(5(3x+1)))}}} = {{{((12x^2-2x+38))/(5(3x+1)))}}} = {{{(2(6x^2-x+19))/(5(3x+1)))}}}