Question

find the roots of the following equation by applying quadratic formula but first find out discriminant Q21​

Answer 1

x²+1 =3x

x²-3x+1 =0

discriminant, d= b²-4ac = (-3)²-(4×1×1) =5

roots = -b+/-sqrt(d) ÷ 2a

= 3+sqrt 5/2 , 3-sqrt5/2