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Grade 11 · Math · Algebra 2

11th grade Zeros of a polynomial and its factors, in both directions worksheet

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Zeros of a polynomial and its factors, in both directions

Grade 11 Math Worksheet - Challenge Me

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Circle the best answer, or write your answer on the line.

  1. Luz sketches a polynomial with only the zeros -1 (multiplicity 2) and 3. It passes through (-2, -20). What is its leading coefficient?

  2. Noah plans a trail profile with only the zeros 1 (multiplicity 2) and -3. It passes through (-2, 36). What is its leading coefficient?

  3. Ren draws a polynomial with only the zeros -2 (multiplicity 2) and 5, through (1, 108). What is its leading coefficient?

  4. Tala knows x = 1 is a zero of p(x) = x³ − 4x² − 7x + 10. What are all the zeros of p?

  5. Zee's robot reports that x = -3 is a zero of p(x) = x³ − 3x² − 10x + 24. What are all the zeros of p?

  6. Bo tests x = 2 and finds a zero of p(x) = 2x³ + 3x² − 11x − 6. What are all the zeros of p?

  7. Jun builds a polynomial with leading coefficient 1 and only the zeros 2 (multiplicity 2) and -3. What is it in standard form?

  8. Kira's robot needs a polynomial with leading coefficient 2 and only the zeros -1 (multiplicity 2) and 4. What is it in standard form?

  9. Luz needs a polynomial with leading coefficient -1 and only the zeros 0 and 5 (multiplicity 2). What is it in standard form?

  10. Milo writes a polynomial with leading coefficient 1 and only the zeros 1, -1 and 2 (multiplicity 2). What is it in standard form?

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11th grade Zeros of a polynomial and its factors, in both directions worksheet – printable
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About this worksheet

Zeros of a polynomial and its factors. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

  • I can read every zero of a factored polynomial, with the right sign and its multiplicity.
  • I can write a polynomial from its zeros, in factored form or multiplied out.
  • I can divide out a zero I know and find the other zeros.

Standard: A-APR.B.3

Words to know

zero: An input whose output is 0; a row of the table with output 0.

factor: A bracket that multiplies, like x − 3; it is 0 at its zero.

multiplicity: How many times a factor appears: the power on it.

leading coefficient: The number in front of the highest power of x.

quotient: What is left after dividing; here one degree lower.

Common mistakes

Read the zero straight off a factor with the sign kept, so x + 3 became x = 3.

Gave the output at x = 0 instead of an input whose output is 0.

Counted a repeated factor once, so a power like (x − 3)² was lost.

What to say

Ask: what number makes x + 3 equal 0?

Ask: which column of the table has to show 0?

Ask: how many times does x − 3 appear in (x − 3)²?

Questions parents ask

What is the most common mistake with zeros of a polynomial and its factors, in both directions?

Read the zero straight off a factor with the sign kept, so x + 3 became x = 3.

How can I help my child with zeros of a polynomial and its factors, in both directions?

Ask: what number makes x + 3 equal 0?

Are these 11th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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