Step 1
Given; Select the correct answer.
Let f(x) and g(x) be polynomials as shown below.
f(x) = a + a₁ + a₂²... + aₙn
g(x) = bo + b₁x + b₂x² ... + bmxm
Which of the following is true about f(x) and g(x)?
Step 2
Polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials.
Thus,
As seen above, f(x) and g(x) are closed under addition because when added, the result will be a polynomial.
Answer; f(x) and g(x) are closed under addition because when added, the result will be a polynomial.