Respuesta :

The value of n such that the expression x² + 11x + n is a perfect square trinomial can be determined by taking the formula: 11 = 2b where b is a real number. b is equal to 11/2. The third term is equal to (11/2)^2 equal to 121/4 equal to 30.25.

Answer:

The value of n is 30.25.

Step-by-step explanation:

The given expression is

[tex]x^2+11x+n[/tex]             ....(1)

The perfect square trinomial are defined as

[tex](x+y)^2=x^2+2xy+y^2[/tex]                 .....(2)

On comparing (1) and (2), we get

[tex]2y=11[/tex]

[tex]y=\frac{11}{2}[/tex]

The given expression is perfect square trinomial if

[tex]n=y^2[/tex]

[tex]n=(\frac{11}{2})^2[/tex]

[tex]n=\frac{121}{4}[/tex]

[tex]n=30.25[/tex]

Therefore the value of n is 30.25.