The numbers 0, 1, 2, 3, 4 could all be the missing digit because they're all numbers that round down. hope this helped!
Answer:
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Step-by-step explanation:
Diagonal = 
108 = ( x)(48-x)
108 = 48x - x^2
48x -x^2 -108 = 0
I'm assuming you're doing solve the square right now, so you should be able to do the rest.
Answer: n=0 or n=2
Step-by-step explanation: Step 1: Subtract 2n from both sides.
n²−2n=2n−2n
n²−2n=0
Step 2: Factor left side of equation.
n(n−2)=0
Step 3: Set factors equal to 0.
n=0 or n−2=0
n=0 or n=2