Question

9x elevado a 2 mais 6x mais 1 igual a zero

Answer 1

9x^2+6x+1=0
delta=b^2-4ac
delta=6^2-4.9.1
delta=36-36
delta=0
x=-b-/+ raiz de delta/2a
x=-6-0/2.9
x=-6/18 (÷6)
x=-1/3