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pottersheep

  • 4 years ago

(2r-1)(r^4+r^2+1) = 0 help me find r please

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  1. mth3v4
    • 4 years ago
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    um what math lvl is this?

  2. pottersheep
    • 4 years ago
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    im grade 11 lol but I forget the rules..I'm supposed to let r^2 = k tho, that I'm sure of

  3. mth3v4
    • 4 years ago
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    sorry dont know XD

  4. pottersheep
    • 4 years ago
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    aw okay :( thanks anyways

  5. mth3v4
    • 4 years ago
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    well i gave up :P

  6. mth3v4
    • 4 years ago
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    i can try again lol

  7. mth3v4
    • 4 years ago
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    i forgot ha just multiply the terms out FOIL :P (I havent done it yet )

  8. mth3v4
    • 4 years ago
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    okis it comes out to (2r^5 + 2r^3 +2r) + (-r^4-r^2-1) 2r^5 + (-r^4) +2r^3 + (-r^2) + 2r + (-1) = 0 ... is my simplify correct :P

  9. pottersheep
    • 4 years ago
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    I got it nvm thanks thooooo :))

  10. mth3v4
    • 4 years ago
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    does it help though?

  11. mth3v4
    • 4 years ago
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    i mean

  12. mth3v4
    • 4 years ago
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    did i get it right lol XD

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