I am assuming the answer could be C
Answer:
(a) Because the expression is not an equation
(b) Because the expression is an equation
Step-by-step explanation:
Solving (a): a + 2
The above expression can assume any value for a because it is not an equation.
Take for instance:
a = 2;



<em>The reason for this is because the expression is not an equation</em>
Solving (b): 
The above expression can assume only value for b, and the value is:



This means that only
will make the equation true.
<em>The reason for this is because the expression is an equation</em>
I think the answer would be J?
Answer:
option b
Step-by-step explanation:
a^2 - 2*6a + 6^2
which equals to
(a-6)^2