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Blondisaurus

  • one year ago

How would you factor 4-25v^2?

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  1. anonymous
    • one year ago
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    What do you think the answer could be?

  2. Blondisaurus
    • one year ago
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    I dont know. D:

  3. pooja195
    • one year ago
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    You need to square root both of those this is called diffrence of squares

  4. pooja195
    • one year ago
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    Whats the sqaure root of 25?

  5. Blondisaurus
    • one year ago
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    5

  6. pooja195
    • one year ago
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    Whats the square root of 4?

  7. Blondisaurus
    • one year ago
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    2

  8. pooja195
    • one year ago
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    Good so now we put them together and our answer would be... \[\huge~(−5v+2)(5v+2) \]

  9. pooja195
    • one year ago
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    And when you try to FOIL it you will get the same thing as 4-25v^2

  10. Blondisaurus
    • one year ago
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    Ive never seen this type of factoring. But ok, i see what you did

  11. Blondisaurus
    • one year ago
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    Thanks!

  12. pooja195
    • one year ago
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    You're welcome :)

  13. pooja195
    • one year ago
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    Here Two terms that are squared and separated by a subtraction sign like this: a2 - b2 Useful because it can be factored into (a+b)(a−b) http://www.mathsisfun.com/definitions/difference-of-squares.html

  14. pooja195
    • one year ago
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    if that makes it better :)

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