The length of a rectangle is 1 units more than the width. The area of the rectangle is 56 units. What is the length, in units, o
f the rectangle?
1 answer:
Answer:
8
Step-by-step explanation:
Width is x.
Length is (x + 1).
Area = length*width
56 = x(x+1)
x² + x - 56 = 0
(x+8)(x-7)=0
x = - 8, or x = 7
"- 8" is impossible for width.
So, width x = 7
Length = (x+1) = 7+1 = 8
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