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anonymous

  • 4 years ago

25p^2-5p-2 factor the trinomial

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  1. campbell_st
    • 4 years ago
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    my method is multiply the coefficient of p^2 by the constant.... 25 x -2 = -50 find 2 factors of 50 that add to - 5 ...... -10 and 5 so you have \[[(25p - 10)(25p + 5)]/25\] simplifying will give (5x - 2)(5x +1)

  2. anonymous
    • 4 years ago
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    what happened to p^2?

  3. campbell_st
    • 4 years ago
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    oops should read (5p - 2)(5p +1)

  4. anonymous
    • 4 years ago
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    but why do you have (25p-10)(25p+10)/25?

  5. campbell_st
    • 4 years ago
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    part of the method I use for solving difficult trinomials.... by doing that the next step is to simplify the numerator.. \[[5(5p-2)5(5p+1)]/25\] \[= [25(5p - 2)(5p+1)]/25\] cancel the 25s to get the answer

  6. anonymous
    • 4 years ago
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    okay. one more question where did you get (5p+1)?

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