Answer:
The answer is A 21
Step-by-step explanation:
Answer:

Step-by-step explanation:
We are going to use the identity
because this identities right hand side matches your expression where
and
.
So we have that
is equal to
.
Answer:X=-4
Step-by-step explanation:
Answer:

Step-by-step explanation:
We want to write an integer expresion to represents the verbal expresion:
"the opposite of the absolute value of negative seven"
The absolute value of negative seven is written as:

When we simplify this, we get 7.
This integer is positive.
The opposite of positive seven is negative seven.
Therefore the required integer expresion for "the opposite of the absolute value of negative seven" is 