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anonymous

  • 5 years ago

Please help. The problem is: Use long division to divide (x^4-2x^2-1) divided by (X^2-3x-2)

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  1. amistre64
    • 5 years ago
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    do you remember how to do long division with numbers?

  2. anonymous
    • 5 years ago
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    yes

  3. anonymous
    • 5 years ago
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    My computer is freezing. I will have to reboot. Be right back

  4. amistre64
    • 5 years ago
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    exact same thing then.... x^2 +3x +11 ------------------ x^2 -3x -2 | x^4 -2x^2 -1 -x^4 +3x^3 +2x^2 ------------------- +3x^3 +2x^2 -1 -3x^3 +9x^2 +6x ------------------ 11x^2 +6x -1 -11x^2 +33x +22 ------------------ 39x +21 ^^^^^^ our remainder 39x +21 x^2 +3x +11 + ----------- if I kept me wits about me :) x^2 -3x -2

  5. amistre64
    • 5 years ago
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    i missed it lol.... easier to keep track of on paper

  6. anonymous
    • 5 years ago
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    Indeed; close, but no cigar.

  7. amistre64
    • 5 years ago
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    that first (-2x^2 + 2x^2) got out of my sight....

  8. amistre64
    • 5 years ago
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    copy paste then edit eh....

  9. amistre64
    • 5 years ago
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    exact same thing then.... x^2 +3x +9 ------------------ x^2 -3x -2 | x^4 -2x^2 -1 -x^4 +3x^3 +2x^2 ------------------- +3x^3 -1 -3x^3 +9x^2 +6x ------------------ 9x^2 +6x -1 -9x^2 +27x +18 ------------------ 33x +17 ^^^^^^ our remainder 33x +17 x^2 +3x +9 + ----------- if I kept me wits about me :) x^2 -3x -2

  10. amistre64
    • 5 years ago
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    I was to busy making sure I flipped my signs to notice it the first time :)

  11. anonymous
    • 5 years ago
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    Oh dear. Don't worry, long division is gay, anyway.

  12. amistre64
    • 5 years ago
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    I got a notebook full of long square rootings I did years ago...

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