Factoring and Dividing Polynomials
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Questions and Answers

What is the greatest common factor (GCF) of $12x^3y$, $8xy$, and $-6xy$?

  • $2xy$ (correct)
  • $6x^3y$
  • $8xy^2$
  • $4x^2y$

After dividing, what is the simplified form of $\frac{25x^7}{5x}$?

  • $5x^6$ (correct)
  • $20x^6$
  • $5x^8$
  • $30x^6$

What is the simplified form of $\frac{30x}{5x}$?

  • 5
  • 30
  • x
  • 6 (correct)

What is the factored form of the quadratic expression $x^2 - 11x + 18$?

<p>$(x - 2)(x - 9)$ (D)</p> Signup and view all the answers

In the quadratic expression $x^2 - 11x + 18$, what is the value of 'c'?

<p>18 (D)</p> Signup and view all the answers

Flashcards

Greatest Common Factor (GCF)

The largest expression that divides evenly into all terms of a polynomial.

Factoring

To rewrite a polynomial as a product of its factors. Reverse of expanding.

Dividing Polynomials by Monomials

Divide each term of the polynomial by the monomial, using exponent rules.

Factoring x^2 + bx + c

A polynomial of the form x^2 + bx + c can be factored into (x + p)(x + q), where p + q = b and p * q = c.

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Factored Form

Rewrite the quadratic as (x + p)(x + q), using the numbers found for p and q.

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Study Notes

  • Topic 6 - Quiz
  • Quiz Date: 1/22/25

Factoring Polynomials Using GCF

  • Expression: 12x⁵y³ + 8x⁴y² - 6x³y¹
  • Factors of 12: 2, 6, 2, 3
  • Factors of 8: 2, 4, 2, 2
  • Factors of 6: 2, 3
  • There are three x's
  • There is one y
  • GCF: 2x³y¹(6x² + 4x - 3)

Dividing Polynomials by 5x

  • (25x⁷ - 10x² + 30x) / 5x = 5x⁶ - 2x¹ + 6
  • Note: x⁰ = 1

Factored Form of x² + 11x + 18

  • Standard form: x² + bx + c
  • ax² + 11x + 18
  • Factors of 18: 1, 18, 2, 9, 3, 6
  • p + q = b
  • p * q = c
  • Factored form: (x + 2) * (x + 9)

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Description

Learn to factor polynomials by finding the greatest common factor. Also, divide polynomials by monomials, simplifying expressions. Review factoring quadratic expressions by identifying factor pairs.

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