Question

Which of the following shows the polynomial-3a2 + 9a3 + 1 -a in standard form?

Answer 1

Answer:

9a^3 - 3a^2 - 1a + 1

Step-by-step explanation:

A polynomial in standard form has its terms arranged in decreasing order by power of x.  Given -3a2 + 9a3 + 1 -a, we rearrange the terms in decreasing order by power of x, obtaining:  

9a^3 - 3a^2 - 1a + 1

Notice that the powers of a are in decreasing ordeer:  {9, -3, -1, 1}

Answer 2

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