Solve the Equation Using the Quadratic Formula $x ^ { 2 } - x - 42 = 0$

Solve the equation using the quadratic formula. Check your solution. $x ^ { 2 } - x - 42 = 0$

A) x₁ = 6, x₂ = -7
B) x₁ = -7, x₂ = - 6
C) x₁ = 5, x₂ = -8
D) x₁ = - 6, x₂ = 7
E) x₁ = 6, x₂ = 7