The width of rectangle is 6.
Step-by-step explanation:
Given,
Area of rectangle; w²+4w=60
As w is the width, we will solve the equation to find w.

Subtracting 60 from both sides

Factorizing the equation;

Either,
w+10=0 => w=-10
Or,
w-6=0 =>w=6
As width cannot be negative, therefore
Width = 6
The width of rectangle is 6.
Keywords: area, rectangle
Learn more about area at:
#LearnwithBrainly