Respuesta :

y=4+(64rza r=r z =r a=r
dhiab

Answer:

Step-by-step explanation:

Y=9x²+12x+4

Y=9(x²+(12/9)x+4/9)

Y=9(x²+(4/3)x+4/9)

Y=9(x²+2(2/3)x+4/9)

Y=9(x²+2(2/3)x+4/9)

Y=9(x+2/3)²

Y = 0 : x+2/3 = 0

x = -2/3 is the solution of a polynomial