Question

choose the constant term that completes the perfect square trinomial y^2+8y

Answer 1

The value of y will be 3.

Answer 2

Answer:

The required constant term is 16.

Step-by-step explanation:

The given expression is

$y^2+8y$                   .... (1)

The perfect square trinomial is

$(x+y)^2=x^2+2xy+y^2$               .... (2)

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

$2x=8$

$x=4$

To make perfect square trinomial, we have to add x² in the given expression.

$x^2=4^2=16$

Therefore the required constant term is 16.