Answer:
x = 5
Step-by-step explanation:
Width = x inches
Length = (x+3) inches
Area = 40 sq inches
The area of a rectangular shaped object is given by :
[tex]A=l\times b[/tex]
Putting all the values,
[tex]x(x+3)=40\\\\x^2+3x-40=0\\\\x^2+8x-5x-40=0\\\\x(x+8)-5(x+8)=0\\\\(x-5)(x+8)=0\\\\x=5,-8[/tex]
Neglecting x = -8.
So, the value of x is 5.
