Question

( x^{2}-3 x+1 )
( x=-frac{b pm sqrt{b^{2}-4 a c}}{2 a} )
( =-(-3) pm sqrt{(-3)^{2}-4(1)(1)} )
( =frac{3 pm sqrt{9-4}}{2} )
( =frac{3+sqrt{5}}{2}, frac{3-sqrt{5}}{2} )

# ILLUSTRATION : 5 Find the roots of x2 – 3x +1 = 0

Solution