Factor the quadratic $x^{2} - x - 42$.

Answer =

Solve the equation $6 y^{2} - 23 y + 7 =0$ by factoring.

The solutions are $y = $

If there are more than one solution, separate answers by commas

Solve the equation $3 y^{2} + 11 y + 8 =0$ by factoring.

Factor the quadratic $21 y^{2} - 10 y - 16$.

Factor the quadratic $5 y^{2} + 13 y - 6$.

Solve the equation $5 y^{2} + 29 y + 20 =0$ by factoring.