Question 66092
The area of tyhe border is
{{{B = 1+1+1+1+4(x*1)}}} where x is the width of the square picture
{{{B = 4 + 4x}}}
without the border
A = area of picture
{{{A = x^2}}}
{{{B = A}}}
{{{4 + 4x = x^2}}}
{{{x^2 - 4x -4 = 0}}}
(B) is the correct choice
{{{4.8^2 - 4*4.8 - 4 = 0}}}
{{{23.04 - 19.2 - 4 = 0}}}
This is approximately correct