Let us pretend x is the number.
The equation will be 13-6x=11+4x.
Solve.......
X=2/10
L = A/W
Length equals area divided by width
Cut the 4 corners off and you will have an 8-sided octagon
X^2+12x=0
(ax^2+bx)=0
(b/2)^2=(12/2)^2=(6)^2=36
x^2+12x+36=(x+6)^2
N = -104 is the correct answer
