Answer:
Step-by-step explanation:
The area of a rectangle can be found with the equation [tex]A = l * w[/tex], where [tex]l[/tex] is the length of the rectangle, and [tex]w[/tex] is the width.
From the problem statement, we know that [tex]A = 300[/tex]. We also know that [tex]l = w + 5[/tex].
Plugging these numbers in, we get the following equation:
[tex]A = l * w[/tex]
[tex]300 = (w + 5)w[/tex]
[tex]w^{2} + 5w = 300[/tex]