Question

( x^{2}-x+4 geq 0 )
( x^{2}-frac{x}{2} times 2+frac{1}{4}-frac{1}{4}+4 geq 0 )
( left.x-frac{1}{2}right)^{2}+4-frac{1}{4} geq 0 )
( x=1 / 2+frac{15}{4} geq 0 )
( x in R )

# The set of all values of x satisfying .ca - 1+4>0, is

Solution