Question

What number is added to x^2+6x to get (X+3)^2​

Answer 1

Answer:

Step-by-step explanation:

Hope it helps...

Answer 2

Answer:

let the number be A

then

(x^2+6x)+A=(X+3)^2

A=(X+3)^2-(x^2+6x)

=(x^2+6x+9-x^2-6x

=9