Factor the quadratic $5 y^{2} + 42 y + 16$.
Answer =
Solve the equation $2 z^{2} + 3 z - 20 =0$ by factoring.
The solutions are $z = $
If there are more than one solution, separate answers by commas
Factor the quadratic $20 y^{2} + 43 y + 21$.
Factor the quadratic $5 x^{2} - 6 x + 1$.
Solve the equation $3 x^{2} + 20 x - 32 =0$ by factoring.
The solutions are $x = $
Solve the equation $6 x^{2} + 55 x + 9 =0$ by factoring.