Solve the equation $30 y^{2} + 53 y + 21 =0$ by factoring.
The solutions are $y = $
If there are more than one solution, separate answers by commas
Solve the equation $63 y^{2} + 58 y - 16 =0$ by factoring.
Factor the quadratic $72 z^{2} - 83 z + 21$.
Answer =
Solve the equation $40 y^{2} + 11 y - 21 =0$ by factoring.
Factor the quadratic $21 y^{2} - 44 y - 32$.
Factor the quadratic $20 x^{2} - 41 x + 9$.