The calculated average of a data set best describes A: Mean.
The greatest common factor is 6. Thus means we divide every part of the expression by 6.
6x^2/6 = x^2
42x/6 = 7x
-18/6 = -3
Your new expression is 6(x^2 + 7x -3).
A numeric form using exponents.
In math, set generally refers to a collection of values.
