I see what he measn I'll just edited my answer the first two towards the end is meaning that he wants 1/2 to the second power you could say or squared and the two at the end is just saying to show that the two next to the 1/2 is a numerical expression so mathmatically that two is just for an example in his case he forgot to add an equals sign
But here's my work along with it
In previous problems I have explainded before I have stated the operations of pemdas
1.Exponets
2. Parenthasess
3. Mutiplication
4. Division
5. Addition
6. Subtraction
7 + (10 − 4)2 ÷ 4 × 1/2 2 so we first take care of the parenthasses.
7 + 6(2) ÷ 4 × 1/2 2 The next sep is multiplication
7 + 12 ÷ 1 Now when you multipply the fraction and every thing said and done you get 4/4's and I am going to treat this as 1
Then we divide which = 19 and when we divide by 1 we still get 19
Now if I were to kept the four It would have been 4.75
+448 