Help on #97! Need to know how to work it out using polynomial equations!
Mathematics
montiel17
Question
Help on #97! Need to know how to work it out using polynomial equations!
1 Answer

1. User Answers Apocrophon
Area = length * width
length = (2 * width)  1
[tex] 10 = l*w\\
10=(2w1)*w\\
10=2w^{2}w\\
2w^{2}w10=0\\
(2w5)(w+2)=0\\\\
2w5=0\\
2w=5\\
w=\frac{5}{2}=2.5\\
w+2=0\\
w=2 [/tex]
Since length cannot be negative, w = 2 is not a solution. Thus, [tex] \frac{5}{2}~ft[/tex] is your width.
Since length = 2 * width  1, plug in width:
[tex] l=2(\frac{5}{2})1\\
l=51\\
l=4~ft[/tex]