Question 1000286
A poster is 24 cm taller than it is wide. If it is mounted on a piece of cardboard so that there is a 6cm boarder on all sides and if the area of the boarder is 720cmsquared What are the dimensions of the poster 
<pre>With W being width of poster, equation to form is: Area of cardboard, less area of border, equals area of poster, OR
{{{W^2 + 48W + 432 - 720 = W^2 + 24W}}} 
Solve this for the width, or W, to get: {{{highlight_green(12)}}} cm
Height of poster: 12 + 24, or {{{highlight_green(36)}}} cm