Polynomial identities and the Binomial Theorem

Grade 11 Math Worksheet - Challenge Me

NameDate

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

  1. On a worksheet, Esme expands (2x + 1)³ with the cube pattern. Type powers like x^3. What is it in fewest terms?

  2. In a notebook, Jun finds the volume of a cube with edge 3x − 1. Type powers like x^3. What is it in fewest terms?

  3. Kira expands (2x − 3)³ in pencil. Type powers like x^3. What is it in fewest terms?

  4. On a puzzle card, Luz builds (3x + 2)³ from 8 blocks. Type powers like x^3. What is it in fewest terms?

  5. On a worksheet, Milo factors x² + 9 using i² = −1. Which product is it?

    • (x + 9i)(x − 9i)
    • (x + 3i)(x − 3i)
    • (x + 3)(x − 3)
    • (x + 3i)²
  6. In a notebook, Noah writes x² + 25 as a product of two binomials with i. Which one is right?

    • (x + 5i)(x − 5i)
    • (x + 5)(x − 5)
    • (x + 5i)²
    • (x + 25i)(x − 25i)
  7. On a puzzle card, Ren needs 9x² + 16 as a product with i. Which one is right?

    • (3x + 4i)(3x − 4i)
    • (3x + 4)(3x − 4)
    • (3x + 4i)²
    • (3x + 16i)(3x − 16i)
  8. On a worksheet, Tala wants one term of (x + 3)⁴ without writing them all. What is the coefficient of x²?

  9. In a notebook, Zee uses the Binomial Theorem on (x − 2)⁵. What is the coefficient of the x² term?

  10. On a puzzle card, Jun needs the x³ term of (2x − 3)⁴. What is its coefficient?

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Polynomial identities and the Binomial Theorem

Answer Key - Grade 11 Math Worksheet - Challenge Me

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

  1. On a worksheet, Esme expands (2x + 1)³ with the cube pattern. Type powers like x^3. What is it in fewest terms?

    8x^3 + 12x^2 + 6x + 1
  2. In a notebook, Jun finds the volume of a cube with edge 3x − 1. Type powers like x^3. What is it in fewest terms?

    27x^3 - 27x^2 + 9x - 1
  3. Kira expands (2x − 3)³ in pencil. Type powers like x^3. What is it in fewest terms?

    8x^3 - 36x^2 + 54x - 27
  4. On a puzzle card, Luz builds (3x + 2)³ from 8 blocks. Type powers like x^3. What is it in fewest terms?

    27x^3 + 54x^2 + 36x + 8
  5. On a worksheet, Milo factors x² + 9 using i² = −1. Which product is it?

    • (x + 9i)(x − 9i)
    • (x + 3i)(x − 3i)
    • (x + 3)(x − 3)
    • (x + 3i)²
  6. In a notebook, Noah writes x² + 25 as a product of two binomials with i. Which one is right?

    • (x + 5i)(x − 5i)
    • (x + 5)(x − 5)
    • (x + 5i)²
    • (x + 25i)(x − 25i)
  7. On a puzzle card, Ren needs 9x² + 16 as a product with i. Which one is right?

    • (3x + 4i)(3x − 4i)
    • (3x + 4)(3x − 4)
    • (3x + 4i)²
    • (3x + 16i)(3x − 16i)
  8. On a worksheet, Tala wants one term of (x + 3)⁴ without writing them all. What is the coefficient of x²?

    54
  9. In a notebook, Zee uses the Binomial Theorem on (x − 2)⁵. What is the coefficient of the x² term?

    -80
  10. On a puzzle card, Jun needs the x³ term of (2x − 3)⁴. What is its coefficient?

    -96