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Select the correct answer.

Which polynomial is equivalent to [tex]f(x)[/tex]?

A. [tex]-x^4 - 6x^3 - 12x^2 + 9x[/tex]

B. [tex]-x^4 - 9x^2 + 3x[/tex]

C. [tex]-x^4 - 6x^3 - 9x^2 + 3x[/tex]

D. [tex]-x^4 + 6x^3 - 12x^2 + 9x[/tex]

Answer :

To find which polynomial from the given options is equivalent to [tex]\( f(x) = -x^2 + 3x \)[/tex], let's review each option:

1. [tex]\(-x^2 + 3x\)[/tex] – This is the function we have, so we are looking for an expression that matches this.

2. [tex]\(-x^4 - 6x^3 - 12x^2 + 9x\)[/tex] – This does not match because it includes terms with powers greater than 2 and constants that don't match [tex]\(-x^2 + 3x\)[/tex].

3. [tex]\(-x^4 - 9x^2 + 3x\)[/tex] – This does not match because it includes a term with a power of 4 and has an extra term [tex]\(-9x^2\)[/tex] instead of [tex]\(-x^2\)[/tex].

4. [tex]\(-x^4 - 6x^3 - 9x^2 + 3x\)[/tex] – This does not match because it includes terms with higher powers that are not present in the original function.

5. [tex]\(-x^4 + 6x^3 - 12x^2 + 9x\)[/tex] – This does not match because it includes terms with powers greater than 2 and coefficients that don't match [tex]\(-x^2 + 3x\)[/tex].

None of the polynomial options provided are equivalent to [tex]\( f(x) = -x^2 + 3x \)[/tex]. Therefore, the correct answer is that none of the given polynomials are equivalent to [tex]\( f(x) \)[/tex].

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