Ask Question
8 May, 05:17

Which statement justifies that 3x^2 - x - 5 multiplied by 2x^2 - x - 3 obeys the closure property of multiplication?

The result 6x^4 + x^2 + 15 has a degree of 4.

The result 6x^4 + x^2 + 15 is a trinomial.

The result 6x^4 - 5x^3 - 18x^2 + 8x + 15 is a polynomial.

The result 6x^4 - 5x^3 - 18x ^2 + 8x + 15 has a degree of 4.

+5
Answers (1)
  1. 8 May, 05:37
    0
    (3x² - x - 5) (2x² - x - 3)

    3x² (2x² - x - 3) - x (2x² - x - 3) - 5 (2x² - x - 3)

    6x⁴ - 3x³ - 9x² - 2x³ + x² + 3x - 10x² + 5x + 15

    6x⁴ - 3x³ - 2x³ - 9x² + x² - 10x² + 3x + 5x + 15

    6x⁴ - 5x³ - 18x² + 8x + 15

    The result 6x^4 - 5x^3 - 18x^2 + 8x + 15 is a polynomial.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Which statement justifies that 3x^2 - x - 5 multiplied by 2x^2 - x - 3 obeys the closure property of multiplication? The result 6x^4 + x^2 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers