What is the solution set for this quadratic equation? \[y^{2}+7y+6=0\]

Solve by factoring. What is the solution set for this quadratic equation? \[a^{2}+5 a=84\]

Solve by factoring. What is the solution set for this quadratic equation? \[4x=-x^{2}\]

Solve by factoring. What is the solution set for this quadratic equation? \[8k^{2}=56k\]

Solve by factoring. What is the solution set for this quadratic equation? \[m^{2} - m - 30 = 0\]

What are the solutions of this quadratic equation? \[2y^{2} + 26y + 80 = 0\]

What are the solutions of this quadratic equation? \[2w^{2} = 16w+40\]

A projectile is launched from ground level with an initial vertical velocity of 176 ft/s. After how many seconds will the object hit the ground? Tip: Use the general projectile equation: \[h(t)=-16 t^{2}+v_{0} t+h_{0}\]