Answer:
Polynomials are <em>closed</em> under addition and subtraction, which is fancy mathspeak that means that whenever we add or subtract two polynomials, we <em>always</em> get another polynomial. In that way, they behave a lot like the numbers you're probably already familiar with. Adding and subtracting:
- Two integers gives you another integer
- Two rational numbers gives you another rational number
- Two real numbers gives you another real number
And it works the same with polynomials!
K = (x + 1) (x + 2) /3x + 7
Answer:
the image isn't clear
can you type the numbers???
Step-by-step explanation: