State the Value of the Discriminant Determine the # of real roots in the question. 4n^2+9=12n

• 4n^2+9=12n
  4n^2-12n+9=0
  Than Factor : 4n^2-6n-6n+9=0
  2n(2n-3)-3(2n-3)=0
  (2n-3)* (2n-3) =0
  n=3/2
  
• 10 years agoHelpfull: Yes(0) No(0)
• x1=-b+sqrt(b^2-4ac)/2a where a=4,b=-12,c=9
  x1=-(-12)+sqrt((-12)^2-4*4*9)/2*4
  x1=12,x2=12
• 10 years agoHelpfull: Yes(0) No(0)