
Nate T. answered 02/05/20
Electrical Engineer with Experience Tutoring Math and Physics
If the length was twice the width, we can write that as: length (L) = 2*width (W)
L=2*W
Area = length * width
A = L*W
We can substitute the first equation for L into the second:
A=(2*W)*W
A = 2*W2
If X is the original width:
A=2X2
The part about making the garden bigger is irrelevant for this part of the question.