What is the value of c so that x^2-11+c is a perfect square trinomial? (1 point)
a) 121
b) 121/4
c)-11/2
d) 121/2

if you need , reply with more info. u.

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this