Question

Use multiplication to find the product that demonstrates the Closure Property of multiplication of polynomials.

(12x2−3)(4y3+5x2)

(1 point)
Responses

2x2y3+52x4−12y3−15x2
2 x squared y cubed plus Start Fraction 5 over 2 End Fraction x superscript 4 baseline minus 12 y cubed minus 15 x squared

52x2y3+2x4−8y3+15x2
Start Fraction 5 over 2 End Fraction x squared y cubed plus 2 x superscript 4 baseline minus 8 y cubed plus 15 x squared

x2−−√y3+4x4−15x2
Start Root x squared End Root y cubed plus 4 x superscript 4 baseline minus 15 x squared

x2y3+5x4−8y3−15x2

Answer 1

To demonstrate the Closure Property of multiplication of polynomials, we need to multiply the given polynomials \((12x^2 - 3)(4y^3 + 5x^2)\).

Let's multiply the two polynomials:

1. **Distributing \(12x^2\) across \(4y^3 + 5x^2\)**:
- \(12x^2 \cdot 4y^3 = 48x^2y^3\)
- \(12x^2 \cdot 5x^2 = 60x^4\)

2. **Distributing \(-3\) across \(4y^3 + 5x^2\)**:
- \(-3 \cdot 4y^3 = -12y^3\)
- \(-3 \cdot 5x^2 = -15x^2\)

Now, combine all the terms together:
\[
48x^2y^3 + 60x^4 - 12y^3 - 15x^2
\]

Now we can rearrange the terms for clarity:
\[
60x^4 + 48x^2y^3 - 12y^3 - 15x^2
\]

Next we can see this arrangement isn't directly listed in the response options. However, we can simplify the coefficients:
\[
60x^4 + 48x^2y^3 - 15x^2 - 12y^3
\]

None of the exact combinations are replicated in your options, which suggests revisiting either the multiplication or ensuring the options account for rearrangement and like terms.

Since the inquiry is primarily about illustrating multiplication leads to valid polynomial outputs confirming the closure property, what we've identified \(60x^4 + 48x^2y^3 - 12y^3 - 15x^2\) stands confirmed as a polynomial expression confirming closure.

In the options provided:

The closest arrangement, especially ignoring coefficients includes:
\(2x^2y^3 + 60x^4 - 12y^3 - 15x^2\).

In a typical case with additional peer review, adjustments on either original formatting should yield identical interpretations.