Answer and Step-by-step explanation:
The length of the rectangle is 3 + w (w represents the width).
<u>The polynomial representing the area of the rectangle:</u>
a (area) = w(3 + w) = w^2 + 3w
A)
a = 1
b = 2
c = 3
d = 1
B)
w = 4
(4)^2 + 3(4) = 8 + 12 = 20
e = 20
<u><em>#teamtrees #PAW (Plant And Water)</em></u>
<u><em></em></u>
<u><em>I hope this helps!</em></u>
it means that the length is 5 times the width
You FOIL (First, Outer, Inner, Last)
If you FOIL, you should get 2y^2 - 4y + 4y^2 - 8y +12y -24
There is actually a cool trick to this. When you see a and 2a, in this case 6 and 12, then the small triangle is a 60-30-90 triangle. The remaining side is

.
This value rounds down to 10, and yep, you guessed it, another 30-60-90.
This time, x =

.
This is a very difficult problem and requires knowledge of the special triangles. Hope this helps!