what is the value of n so that the expression x^(2) + 11x + x is a perfect square trinomial?
A ) 11
B ) 25
C ) 30.25
D ) 36
To determine the value of n, we need to find the value that makes the expression a perfect square trinomial, which means it can be factored into the square of a binomial.
The given expression is: x^2 + 11x + n
To make it a perfect square trinomial, we need to take half of the coefficient of x and square it. In this case, half of 11 is 5.5, and 5.5^2 = 30.25.
Therefore, the value of n that makes the expression a perfect square trinomial is 30.25.
The correct answer is C) 30.25.