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Factoring Polynomials

Description: Test your understanding of factoring polynomials by solving the following questions.
Number of Questions: 14
Created by:
Tags: factoring polynomials algebra
Attempted 0/14 Correct 0 Score 0

Factor the polynomial (x^2 + 5x + 6).

  1. (x + 2)(x + 3)

  2. (x - 2)(x - 3)

  3. (x + 1)(x + 6)

  4. (x - 1)(x - 6)


Correct Option: A
Explanation:

To factor (x^2 + 5x + 6), find two numbers that add up to 5 and multiply to 6. These numbers are 2 and 3. Therefore, (x^2 + 5x + 6 = (x + 2)(x + 3)).

Factor the polynomial (x^2 - 9).

  1. (x + 3)(x - 3)

  2. (x + 9)(x - 9)

  3. (x + 1)(x - 9)

  4. (x - 1)(x + 9)


Correct Option: A
Explanation:

To factor (x^2 - 9), recognize that it is a difference of squares. Therefore, (x^2 - 9 = (x + 3)(x - 3)).

Factor the polynomial (x^2 - 4x + 4).

  1. (x + 2)^2

  2. (x - 2)^2

  3. (x + 4)(x - 4)

  4. (x - 4)(x + 4)


Correct Option: B
Explanation:

To factor (x^2 - 4x + 4), recognize that it is a perfect square trinomial. Therefore, (x^2 - 4x + 4 = (x - 2)^2).

Factor the polynomial (x^3 + 2x^2 + x).

  1. x(x + 1)^2

  2. x(x - 1)^2

  3. x(x + 2)(x - 1)

  4. x(x - 2)(x + 1)


Correct Option: A
Explanation:

To factor (x^3 + 2x^2 + x), factor out an (x) and then factor the remaining quadratic expression. Therefore, (x^3 + 2x^2 + x = x(x^2 + 2x + 1) = x(x + 1)^2).

Factor the polynomial (x^3 - 8).

  1. (x - 2)(x^2 + 2x + 4)

  2. (x + 2)(x^2 - 2x + 4)

  3. (x - 2)^3

  4. (x + 2)^3


Correct Option: A
Explanation:

To factor (x^3 - 8), use the difference of cubes formula. Therefore, (x^3 - 8 = (x - 2)(x^2 + 2x + 4)).

Factor the polynomial (x^4 - 16).

  1. (x^2 + 4)(x^2 - 4)

  2. (x^2 + 2)(x^2 - 8)

  3. (x + 2)^2(x - 2)^2

  4. (x - 2)^4


Correct Option: A
Explanation:

To factor (x^4 - 16), recognize that it is a difference of squares. Therefore, (x^4 - 16 = (x^2 + 4)(x^2 - 4) = (x^2 + 4)(x + 2)(x - 2)).

Factor the polynomial (x^5 - 32).

  1. (x - 2)(x^4 + 2x^3 + 4x^2 + 8x + 16)

  2. (x + 2)(x^4 - 2x^3 + 4x^2 - 8x + 16)

  3. (x - 2)^5

  4. (x + 2)^5


Correct Option: A
Explanation:

To factor (x^5 - 32), use the difference of cubes formula. Therefore, (x^5 - 32 = (x - 2)(x^4 + 2x^3 + 4x^2 + 8x + 16)).

Factor the polynomial (x^6 - 64).

  1. (x^3 + 4)(x^3 - 16)

  2. (x^3 + 8)(x^3 - 8)

  3. (x^2 + 8)(x^4 - 8x^2 + 64)

  4. (x^2 - 8)(x^4 + 8x^2 + 64)


Correct Option: A
Explanation:

To factor (x^6 - 64), recognize that it is a difference of cubes. Therefore, (x^6 - 64 = (x^3 + 4)(x^3 - 16) = (x^3 + 4)(x + 2)(x^2 - 2x + 4)).

Factor the polynomial (x^8 - 1).

  1. (x^4 + 1)(x^4 - 1)

  2. (x^2 + 1)(x^6 - x^4 + x^2 - 1)

  3. (x^2 - 1)(x^6 + x^4 + x^2 + 1)

  4. (x + 1)(x^7 - x^6 + x^5 - x^4 + x^3 - x^2 + x - 1)


Correct Option: A
Explanation:

To factor (x^8 - 1), recognize that it is a difference of squares. Therefore, (x^8 - 1 = (x^4 + 1)(x^4 - 1) = (x^4 + 1)(x^2 + 1)(x^2 - 1)).

Factor the polynomial (x^{10} - 1).

  1. (x^5 + 1)(x^5 - 1)

  2. (x^2 + 1)(x^8 - x^6 + x^4 - x^2 + 1)

  3. (x^2 - 1)(x^8 + x^6 + x^4 + x^2 + 1)

  4. (x + 1)(x^9 - x^8 + x^7 - x^6 + x^5 - x^4 + x^3 - x^2 + x - 1)


Correct Option: A
Explanation:

To factor (x^{10} - 1), recognize that it is a difference of squares. Therefore, (x^{10} - 1 = (x^5 + 1)(x^5 - 1) = (x^5 + 1)(x + 1)(x^4 - x^3 + x^2 - x + 1)).

Factor the polynomial (x^3 + 3x^2 + 3x + 1).

  1. (x + 1)^3

  2. (x - 1)^3

  3. (x + 1)(x^2 - x + 1)

  4. (x - 1)(x^2 + x + 1)


Correct Option: A
Explanation:

To factor (x^3 + 3x^2 + 3x + 1), recognize that it is a sum of cubes. Therefore, (x^3 + 3x^2 + 3x + 1 = (x + 1)^3).

Factor the polynomial (x^3 - 3x^2 + 3x - 1).

  1. (x - 1)^3

  2. (x + 1)^3

  3. (x - 1)(x^2 + x + 1)

  4. (x + 1)(x^2 - x + 1)


Correct Option: A
Explanation:

To factor (x^3 - 3x^2 + 3x - 1), recognize that it is a difference of cubes. Therefore, (x^3 - 3x^2 + 3x - 1 = (x - 1)^3).

Factor the polynomial (x^4 + 6x^2 + 9).

  1. (x^2 + 3)^2

  2. (x^2 - 3)^2

  3. (x + 3)^2(x - 3)^2

  4. (x^2 + 9)(x^2 - 9)


Correct Option: A
Explanation:

To factor (x^4 + 6x^2 + 9), recognize that it is a perfect square trinomial. Therefore, (x^4 + 6x^2 + 9 = (x^2 + 3)^2).

Factor the polynomial (x^4 - 6x^2 + 9).

  1. (x^2 + 3)^2

  2. (x^2 - 3)^2

  3. (x + 3)^2(x - 3)^2

  4. (x^2 + 9)(x^2 - 9)


Correct Option: B
Explanation:

To factor (x^4 - 6x^2 + 9), recognize that it is a perfect square trinomial. Therefore, (x^4 - 6x^2 + 9 = (x^2 - 3)^2).

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