3 years ago

Which of these operations is not closed for polynomials?

Mathematics

1 answer:

alexira [117]3 years ago

6 0

Answer:

B. Division

Step-by-step explanation:

Subtraction is closed for polynomials subtracting two polynomials will result in another polynomial. Same goes with multiplication. However, if you divide polynomials, you are able to get a result that is not always a polynomial. Therefore, division is the answer.

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Which line on the graph represents the equation y + 4 = -2x/3

Korolek [52]

Answer:

The answer is line D

Step-by-step explanation:

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3 years ago

Find a polynomial function p of lowest degree, having rational coefficients, with the given zero. 5i

weqwewe [10]

If we have one zero of +5i, we also have to have its conjugate which is -5i. Therefore, the factors that we will FOIL to get that polynomial are (x+5i)(x-5i). That distribution results in $x^{2} -25 i^{2}$ . I'm sure by now you know that i squared is equal to -1, so -25(-1) = 25. So our polynomial is $x^{2} +25=y$