Let's analyze the given polynomials and their operations to determine if the results are still polynomials.
Given:
[tex]\[
A = 3x^2(x - 1)
\][/tex]
[tex]\[
B = -3x^3 + 4x^2 - 2x + 1
\][/tex]
### Step-by-Step Solution:
1. Addition of [tex]\(A\)[/tex] and [tex]\(B\)[/tex]:
[tex]\[
A + B = 3x^2(x - 1) + (-3x^3 + 4x^2 - 2x + 1)
\][/tex]
Combining the terms will yield a new expression in terms of [tex]\(x\)[/tex]. Since both [tex]\(A\)[/tex] and [tex]\(B\)[/tex] are polynomials, their sum [tex]\(A + B\)[/tex] is also a polynomial.
2. Subtraction of [tex]\(A\)[/tex] and [tex]\(B\)[/tex]:
[tex]\[
A - B = 3x^2(x - 1) - (-3x^3 + 4x^2 - 2x + 1)
\][/tex]
Distributing and combining the terms as we did in addition will result in another polynomial. Since subtraction of polynomials results in a polynomial, [tex]\(A - B\)[/tex] is a polynomial.
3. Multiplication of [tex]\(A\)[/tex] and [tex]\(B\)[/tex]:
[tex]\[
A \cdot B = 3x^2(x - 1) \cdot (-3x^3 + 4x^2 - 2x + 1)
\][/tex]
When multiplying these two polynomials, the product will contain terms that are the product of the terms in [tex]\(A\)[/tex] and [tex]\(B\)[/tex]. Since the product of polynomials is also a polynomial, [tex]\(A \cdot B\)[/tex] is a polynomial.
### Conclusion:
Given the operations we performed:
1. Is the result of [tex]\(A + B\)[/tex] a polynomial? Yes
2. Is the result of [tex]\(A - B\)[/tex] a polynomial? Yes
3. Is the result of [tex]\(A \cdot B\)[/tex] a polynomial? Yes
So, for each question, the correct answer from the drop-down menu is "Yes".
