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Find the difference of squares: (a - b)(a + b) = (a^2 - b^2)

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Now Playing:Find the difference of squares – Example 1a
Examples
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  1. Find the difference of squares
    1. (3x+4y)(3x−4y)(3x + 4y)(3x - 4y)

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    2. (−x2−3y2)(−x2+3y2)(-x^2-3y^2)(-x^2+3y^2)

    3. x2−25x^2 - 25

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    4. 16−25x416 - 25x^4

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    5. 16x2y8−416x^2y^8 - 4

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    6. x2n−25x^{2n} - 25

    7. x8−1x^8 - 1

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    8. (x2+6x+9)−4y2(x^2 + 6x + 9) - 4y^2

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Practice
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Find The Difference Of Squares 1a
Common factors of polynomials
Jump to:NotesPrerequisitesRelated
Notes
The word "difference" in the difference of squares essentially means "subtract". However, solving this type of question is not subtracting the squared terms. It involves factoring and multiplying conjugates, which you will learn it all in this lesson.