What are the zeros of x squared +5x +6

Huong is organizing paperback and hardback books for her club's used book sale. the number of paperbacks is 12 less than three times the number of hardbacks. huong had 162 paperbacks. how many hardback books were there?

The number 72 lies between what perfect squares

Which is the standard form of the equation of the parabola that has a vertex of (-4,-3) and a directrix of x = 2? (x+3)2 = 24(y+4) (y+3)² = 24(x-4) (y+3)² = -24(x+4) (x+3)2 = -24(y+4)