10/4 is not the simplified version that it can be. So 5/2 would be the same expression.
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Answer:

Step-by-step explanation:
Use the square of a binomial theorem
= 
Now expand the given equation:

Hope this helps :)
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<span>4[(10-4) 2 to the second power divided by 4]
=4x6x2</span> to the second power divided by 4
=6x2 to the second power
=6x4
=24
Hope that helps and hope that I didn't misunderstand your question