Name Gryery Cup . Jme enVision Algebra2 2-5 Additional Practice Do all work SavvasRealize.com on a separate Completing the Square sheet of paper / Solve by factoring the perfect square trinomial and taking the square root . 1. x2 + 12x + 36= 25 2. x2 - 10x + 25 = 144 .3. x2 + 6x + 9 = 49 4. x2 - 22x + 121 = 225 Solve 5-10 using 5. x2 + 4x + 3 = 0 6. x2 - 6x + 13 = 0 completing the square 7. x2 + 10x - 1=0 8. x2 + 2x - 7 = 0 9 . - x2 + 6x + 10= 0 10. 4 x 2- 16X = - 8 Write each equation in vertex form. Identify the vertex. 11 . y = x2 - 6x + 4 12. y = x2 + 14x + 50 13 . 4= 4x2+ 24x - 7 14. 4=- 2x2 - 8x +9 15. The path of object can be modeled by the parabolic function of y= - 7x 2+168x + 105. a) What is the vertex form of this function? b ) What is the maximum height of this object? c ) When did the object reach the maximum height