Question

i think uhh should choose splitting method , i think i guess ur question right

like.........

x²-x-6=0
x²-3x+2x-6=0
x(x-3)+2(x-3)=0
(x-3)(x+2)=0
x-3=0 or x+2=0
x=3 or x=-2
​

Answer 1

Answer:

if the expression is easy u can use splitting method

if some what hard to find roots use formula method

its no necessary to use completing sqr method its indirectly fomula

quad formula is derived by completing sqr method