Answer:
Square.
Step-by-step explanation:
A square is a rectangle, but a rectangle is not a square.
bearing in mind that an explicit form is simply the sequence written as a function of some variables, so we simply simplify and add like-terms.

F(-x)=-x+(12/-x)=-x-12/x
odd function
Answer:
x = 7, x = -3
Step-by-step explanation:
We can find the zeros by factoring the equation using the zero product property.
x^2-4x-21 = 0
(x-7)(x+3) = 0
<u>x-7 = 0</u>
x = 7
<u>x+3 = 0</u>
x = -3
Zeros are x=7 and x= -3.
Alliteration
how I remember is that the 2 L’s are together in the word, and the same letter is repeated in the sentence.
if that makes sense,
hope i’m not too late!!