Question 1006568


the length is {{{L=7x^3}}} and the width is {{{W=2x}}}

the perimeter of this rectangle is:

{{{P=2L+2W}}}
{{{P=2*7x^3+2*2x}}}
{{{P=14x^3+4x}}}

 the area of this rectangle:

{{{A=LW}}} 

{{{A=7x^3*2x}}}

{{{A=14x^4}}}