Question 1092111

Area of a rectangular field is x squared minus 120x plus 3500.  The width is x minus 50. What is the length
<pre>Area of rectangle: LW, so width = {{{highlight_green(matrix(1,9, A/L, "=", (x^2 - 120x + "3,500")/(x - 50), "=", ((x - 50)(x - 70))/(x - 50), "=", (cross((x - 50))(x - 70))/cross((x - 50)), "=", highlight(x - 70)))}}}
That's all!!