Quadratics

Problem : Solve for x : x ² - x - 6 = 0

Problem : Solve for x : x ² - 9x + 20 = 0

Problem : Solve for x : x ² + 11x + 24 = 0

Problem : Solve for x : x ² + x - 90

Problem : Solve for x : 3x ² - 15x + 12

Problem : Solve for x : x ² +4x ⁺4 = 0

Problem : Solve for x : -2x ² - 4x + 30 = 0

Problem : Solve for x : (x - 4)² - 1 = 0
Hint: Square the binomial and simplify, then factor.