Final answer:
The student's work likely involves a mistake with arithmetic operations or scientific notation. Basic arithmetic steps include changing signs for subtraction and adding or subtracting exponents for multiplying or dividing powers of ten. Handling of negative exponents and proper scientific notation form are essential considerations.
Step-by-step explanation:
The student's question involves a sequence of mathematical operations that must be evaluated for correctness. The student has made a series of statements that resemble computations with numbers and possible arithmetic or algebraic expressions. While the context of the question is unclear due to potential typos and missing information, we can discuss fundamental arithmetic operations and scientific notation which may be related to the core of the question.
For basic arithmetic involving addition and subtraction, such as 5-(+3), the correct process is to change the signs and compute, resulting in 5-3=2. When multiplying powers of ten, you need to add the exponents. The same principle applies in division; when dividing powers of ten, subtract the exponent in the denominator from the exponent in the numerator. It's essential to remember that negative exponents are treated like normal integers in the context of addition and subtraction in exponents.
If powers of ten are involved in the student's question, there's a possibility that they may have made an error in handling scientific notation. When dividing in scientific notation, you would also divide the coefficients and adjust the exponent accordingly. Considering that 24 is not in acceptable scientific notation form due to having two places to the left of the decimal, you would need to rewrite it as 2.4 and adjust the exponent. The mistake in the student's computation could be related to misapplying these principles.