Answer :

Certainly! Let's simplify the expression step by step:

The given expression is:
[tex]\[ 6 \div 2 + 4 - 2^2 \][/tex]

### Step 1: Evaluate the exponent
First, we need to handle the exponentiation in the expression:
[tex]\[ 2^2 = 4 \][/tex]

So, the expression now becomes:
[tex]\[ 6 \div 2 + 4 - 4 \][/tex]

### Step 2: Perform the division
Next, we move on to the division operation:
[tex]\[ 6 \div 2 = 3 \][/tex]

Now the expression simplifies to:
[tex]\[ 3 + 4 - 4 \][/tex]

### Step 3: Perform addition and subtraction
Finally, we evaluate the addition and subtraction from left to right:
[tex]\[ 3 + 4 = 7 \][/tex]
[tex]\[ 7 - 4 = 3 \][/tex]

Thus, the simplified result of the expression [tex]\( 6 \div 2 + 4 - 2^2 \)[/tex] is:
[tex]\[ \boxed{3} \][/tex]

Abigail might have made an error in the order of operations or in handling the exponentiation and the subsequent operations correctly. The correct result should be [tex]\(3\)[/tex].