Question

Use the expression (a + b)(c - d) + 9e to find an example of each kind of expression

Kind of expression

Example

Difference

с — d

Variable

Coefficient

Answer 1

The difference is: c-d

The Variable is : a

The coefficient is : 9

Explanation:

I just did this on Khan Academy

Answer 2

Difference: c-d

variable: a, b, c, d, e.

coefficient: 9

Explanation:

Difference is c - d

Variables can be dependent or independent: a, b, c, d and d

The coefficient is a number or other known factor (a constant) by which another number or factor (a variable) is multiplied: 9