Solve: - ⁺5 + ⁻11 + ⁺6.
Solve: + ⁺3 X - ⁺15.
Coefficient of x² in 4x³ + 3x² - x + 1 is:
Solve: + ⁺0 + ⁻2 - ⁺8.
What is the result: (3 - 5) * 2 - ⁺3 = ?
