Algebra-1

To determine which expression is a perfect square, we can apply the perfect square formula: .

This means we need to check if each quadratic expression can be written in the form .

 

Analyzing Each Expression

A. 

Here, (b = 3)

Calculate :

This means we would need to rewrite 9 as to fit the perfect square formula. Since 9 is not equal to , this expression is not a perfect square.

 

B. 

Here,

Calculate :

.

However, we have in the expression, which does not equal

Click "Show Answer" to reveal the answer and analysis