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If you add one term to the polynomial expression [tex]$14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 3$[/tex], which of the following would make it into a 22nd degree polynomial?

A) [tex]$14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 3 + 22$[/tex]

B) [tex]$14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 22x + 3$[/tex]

C) [tex]$x^{22} + 14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 3$[/tex]

D) [tex]$14x^{22} - 9x^{15} + 11x^4 + 5x^2 + 3$[/tex]

Answer :

Sure! Let's look at the problem step-by-step.

We start with the polynomial expression:
[tex]\[ 14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 3 \][/tex]

We need to determine which of the given options, when added to this polynomial, will result in a 22nd-degree polynomial.

### Analyzing the Options:

Option A:
[tex]\[ 14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 3 + 22 \][/tex]

- Here, the term [tex]\( 22 \)[/tex] is a constant (or [tex]\( 22x^0 \)[/tex]), which does not change the degree of the polynomial. Therefore, the highest degree term remains [tex]\( 14x^{19} \)[/tex].

Option B:
[tex]\[ 14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 22x + 3 \][/tex]

- Adding [tex]\( 22x \)[/tex] introduces a term with degree 1, which still does not affect the highest degree term [tex]\( 14x^{19} \)[/tex].

Option C:
[tex]\[ x^{22} + 14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 3 \][/tex]

- This option adds the term [tex]\( x^{22} \)[/tex], which introduces a new term with degree 22. This becomes the highest degree in the polynomial.

Option D:
[tex]\[ 14x^{22} - 9x^{15} + 11x^4 + 5x^2 + 3 \][/tex]

- This option adds the term [tex]\( 14x^{22} \)[/tex], also introducing a new term with degree 22. This becomes the highest degree in the polynomial.

### Conclusion:
Both options C and D introduce a term with degree 22, which would change the polynomial into a 22nd-degree polynomial. However, option C fits perfectly without changing the coefficient logic given in the problem.

So, the correct answer is:
[tex]\[ x^{22} + 14x^{19} - 9x^{15} + 11x^4 + 5x^2 + 3 \][/tex]

Thus, the correct answer is:
[tex]\[ \boxed{\text{C}} \][/tex]

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