Question

PLEASE HELP. I'LL GIVE BRAINLIEST.

Find the missing value to complete the square. So what is the value of the question mark that would make the equation true.

x² + 8x + ?

Answer 1

Answer:

16

Step-by-step explanation:

(x+4)(x+4)

Answer 2

Answer:

The answer is 16.

Step-by-step explanation:

Since the 8x is positive, the equation $(x+y)^2$ must have y as a positive number.

Let's see this!

An easy way to complete the square if you have the constants for x2 and

But not the non-variable number is to divide the x constant, and then square it.

Example:

$\frac{8x}{2} \\\\4^2=16$

The last number must be 16. Let's check it.

$(x+4)^2=x^2+8x+16$