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elena-14-01-66 [18.8K]
2 years ago
9

Find a polynomial which, when added to the polynomial 3x2+3x–1, is equivalent to the following expressions.

Mathematics
1 answer:
densk [106]2 years ago
6 0

a) The polynomial R(x) = -3\cdot x^{2}-3\cdot x is required to obtain the polynomial P(x) = 1.

b) The polynomial R(x) = -3\cdot x^{2}-2\cdot x + 6 is required to obtain the polynomial P(x) = x + 5.

In this question we must take advantage of the <em>closure</em> properties for the addition between two polynomials to determine all required polynomials, which are defined by this expression:

R(x) = P(x) - Q(x) (1)

Where:

  • P(x) - Resulting polynomial.
  • Q(x) - Original polynomial.
  • R(x) - Required polynomial.

Now we proceed to determine each required polynomial:

<h3>a) P(x) = 1, Q(x) = 3\cdot x^{2}+3\cdot x - 1</h3><h3 />

R(x) = -3\cdot x^{2}-3\cdot x (1)

<h3 />

The polynomial R(x) = -3\cdot x^{2}-3\cdot x is required to obtain the polynomial P(x) = 1. \blacksquare

<h3 /><h3>b) P(x) = x + 5, Q(x) = 3\cdot x^{2}+3\cdot x - 1</h3><h3 />

R(x) = -3\cdot x^{2}-2\cdot x + 6 (2)

The polynomial R(x) = -3\cdot x^{2}-2\cdot x + 6 is required to obtain the polynomial P(x) = x + 5. \blacksquare

<h3>Remark</h3>

The statement is incomplete, complete form is shown below:

<em>Find a polynomial which, when added to the polynomial </em>3\cdot x^{2}+3\cdot x - 1<em> is equivalent to the following expressions: (a) </em>1<em>, (b) </em>x + 5<em>.</em>

<em />

To learn more on polynomials, we kindly invite to check this verified question: brainly.com/question/17822016

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