Beginning & Intermediate Algebra
The student is correct: x−2x - 2 is the properly simplified result after dropping parentheses
The student is not correct: the correct result is 4x−3x−2+24x - 3x - 2 + 2
The student is not correct: the correct result is 3x−23x - 2
The student is incorrect: the correct result is x+2x + 2