Answer:
Difference: c-d
variable: a, b, c, d, e.
coefficient: 9
Step-by-step 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
it would be -10,200 per year
-3x³ - 4x² + x - 9
-5x³ + 2x² + x - 7
- <u>(-2x³ + 6x² + 0 + 2)</u> remember: when you subtract, you 'add the opposite'
-3x³ + (-4x²) + x + (-9)