Question

A rectangular photograph has an area of 77 square inches. If the width of the photograph is 4 inches less than its height, find the dimensions of the photograph.

The height of the photograph is blank_cubic inches, square inches, inches?

Answer 1

Answer: lb=48

l(l-8)=48

l^2–8l=48

l^2–8l-48=0

l^2–12l+4l-48=0

l(l-12)+4(l-12)=0

l=12inches &

b=12–8=4inches

Explanation: