Solve: - ⁺8 + ⁺3 X + ⁻11.
Solve: - ⁺3 - ⁺11 + ⁺15 + ⁻8.
Coefficient of x² in 4x³ + 3x² - x + 1 is:
Solve: + ⁺3 X - ⁺15.
Solve: - ⁺1 - ⁺0 + ⁻11 + ⁺8.
