### Introduction to quadratic equations?

If you solve the equation by completing the square, fill in the blanks. 9x^2+9x+4=0 x^2+x+blank=-4/9+blank <---- (blank one, both the same) (x+1/2)^2=blank x+1/2= ± √blank <------ blank 2(both the same) x=-1/2 ±blank