Find the error in the student’s calculation. 2 cubed (2 minus 4) + 5 (3 minus 8). 2 cubed (negative 2) + 5 (5). 8 (negative 2) + 25. Negative 16 + 25. 9. The student should have simplified the exponent first. The student did not subtract 3 and 8 correctly. The student should not have multiplied 8 and -2. The student did not make an error.