I need help very fast plz someone help

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

Factor the polynomial. b^2 + 4b + 4