Respuesta :

apologiabiology

for [tex]ax^2+bx+c[/tex]

when a=1, then the value of c that will make the quadratic a perfect square (allows you to complete the square) is [tex](\frac{b}{2})^2[/tex]


given x^2+x

b=1

so [tex]c=(\frac{1}{2})^2=\frac{1}{4}[/tex]

answer is C