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I-water
I-water asked in Science & MathematicsMathematics · 1 decade ago

Please help me...PLEASE!!!!!!111?

Show Work!!!!!

Divide: (7x^3 - 6x^2 - 3x)by (x+2)

Divide: (3x^3 - 7x - 6) by x-4

Show work

4 Answers

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  • Sci Buff
    Lv 4
    1 decade ago
    Favorite Answer

    1.) x+2 | 7x^3 - 6x^2 - 3x -> 7x^2

    -( 7x^3 +14x^2 )

    x+2 | -20x^2 - 3x -> -20x

    -(20x^2 - 40x)

    x+2 | 37x -> 37

    -(37x + 74)

    x+2 | -74 -> -74/(x+2)

    (7x^3 - 6x^2 - 3x)/(x+2) = 7x^2 - 20x + 37 - 74/(x+2)

    2.) x-4 | 3x^3 - 7x - 6 -> 3x^2

    -(4x^3 - 12x^2)

    x-4 | 12x^2 -7x - 6 -> 12x

    -(12x^2 - 48x)

    x-4 | 41x - 6 -> 41

    -(141x - 164)

    x-4| 158 -> 158/(x-4)

    (3x^3 - 7x - 6) / (x-4) = 3x^2 + 12x + 41 + 158/(x-4)

  • Sades
    Lv 5
    1 decade ago

    its synthetic divison, i cant show you online unless i email the work to you

  • ?
    1 decade ago

    And you expect me to know that.

  • MRORMS
    1 decade ago

    i will charge $100 to answer this question.

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