Correct Answer: A
Explanation:
To rewrite the expression, first identify and interpret the individual parts.
Identify the various terms in the expression.
5−(x+3)2−2x
Term One=5
Term Two=(x+3)2
Term Three=2x
Now, recall the general form for exponents.
a2=a⋅a(ax)3=ax⋅ax⋅ax
Then, expand the second term as follows.
(x+3)2=(x+3)⋅(x+3)
From here combine the first term with the expanded second term to result in the final solution.
5−(x+3)⋅(x+3)−2x