Question

What is the value of n such that the expression x² + 11x + n is a perfect square trinomial?
11
25
30.25
36

Answer 1

in a perfect square trinomial
a^2 + b + c = 0, c = (.5b)^2, so it would be 5.5^2 or 30.25

Answer 2

oh my*
ax^2 + bx + c = 0 my bad

Answer 3

A perfect square trinomial follows the form a^2 + 2ab + b^2, since a is 1 b is 1/2 of 11 which is 5.5 so b^2 is 30.25 as mridrik just answered.