Question

x2-15x+54=0 by completing square method

Answer 1

it will help you .
thanks

Answer 2

x2-2*x*15/2+(15/2)2-(15/2)2+54=0 (X-15/2)2=225/4-54 (X-15/2)2=(225-216)/4 X-15/2=ROOT UNDER 9/4 X=15/2+-3/2 TAKING +VE SIGN X=9 TAKING -VE SIGN X=6