Question

Please help me with this!

Answer 1

To form a perfect square, we need to add (b/2)² to the equation.

x² + 16x ⇒ b = 16


`\bigg( (b)/(2) \bigg)^2 = \bigg( (16)/(2) \bigg)^2 = \bigg(8 \bigg)^2= 64`

We need to add 64 to the equation.

x² + 16x + 64 = (x+ 8)²

Answer: We need to add 64 to the equation.

Answer 2

A perfect square is any number that can be multiplied by its self evenly 4x4 = 16. The answer is D.