The length of a rectangle is the sum of the width and 3. The area of the rectangle is 54 units. What is the width, in units, of
the rectangle?
2 answers:
Answer:
Step-by-step explanation:
let width=x
length=x+3
x(x+3)=54
x²+3x-54=0
x²+9x-6x-54=0
x(x+9)-6(x+9)=0
(x+9)(x-6)=0
x=-9,6
x=-9 (rejected)
as width can't be negative.
hence width=6 units
I don’t know what to say about this question
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