Answer:
Width = x² + 5x - 4
Step-by-step explanation:
By the definition of an area model,
Area = Width × greatest common factor
Since, Area = 4x² + 20x - 16
And greatest common factor = 4
4x² + 20x - 16 = 4(Width)
By dividing both the sides of the equation by 4,
[tex]\frac{4x^2+20x-16}{4}=\frac{4(\text{Width})}{4}[/tex]
x² + 5x - 4 = Width
Therefore, width = (x² + 5x - 4) will be he answer.