Factoring Expressions in Algebra
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Questions and Answers

What is the first step in factoring the expression (3n^7 - 75n^5)?

  • Divide both sides by \(3n^5\)
  • Find the greatest common factor of \(3n^7\) and \(75n^5\) (correct)
  • Factor \(3n^7 - 75n^5\) as a difference of squares
  • Use the quadratic formula to solve for \(n\)
  • After factoring out the greatest common factor, what is the remaining expression inside the parentheses?

  • \((n^4 - 25)\)
  • \((n^2 - 25)\) (correct)
  • \((n^2 + 5)\)
  • \((3n^2 - 25)\)
  • What is the completely factored form of (3n^7 - 75n^5)?

  • \((3n^5)(n^2 - 5)(n^2 + 5)\)
  • \((3n^5)(n^2 + 25)\)
  • \((3n^5)(n + 5)(n - 5)\) (correct)
  • \((3n^5)(n^2 - 5)\)
  • What is the value of the expression (3n^7 - 75n^5) when (n = 2)?

    <p>-960 (A)</p> Signup and view all the answers

    If we set the expression (3n^7 - 75n^5) equal to zero, how many distinct real solutions for (n) are there?

    <p>2 (A)</p> Signup and view all the answers

    Study Notes

    Factoring the Expression

    • The expression to factor is 3n7 - 75n5
    • The greatest common factor (GCF) of the terms is 3n5
    • Factor out the GCF: 3n5(n2 - 25)
    • Recognize that (n2 - 25) is a difference of squares
    • Factor the difference of squares: (n2 - 25) = (n - 5)(n + 5)
    • The completely factored expression is 3n5(n - 5)(n + 5)

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    Description

    This quiz focuses on factoring the expression 3n7 - 75n5. It covers finding the greatest common factor and recognizing the difference of squares to completely factor the expression. Test your understanding of these algebraic concepts.

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