Answer:
Step-by-step explanation:
It's about +- 2.2. It equals 2.236067977 but can be rounded to 2.2. When you square root, the answer could be positive or negative.
To find f(-7), just plug -7 in for all x
2(-7) + 8
-14 + 8
-6 is the answer!
It is not having a definite property it is a way commonly used with algebraic expressions
26 = 8 + x (here, we put x instead of the number we don't know)
you can take 8 to the other side with 26 but it will be minus instead of plus
26 - 8 = ×
18 = x
This means that when you write your equation you will have in x somewhere in it the X will be the number 2 or the number 3. hope thia helps good luck!
