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FullHouseSquidy Group Title

i will medal and fan you! 1.(–10x3 + 30x – 20) ÷ (–5x + 5) 2.(8m7 – 10m5) ÷ 2m3 3.(–6m9 – 6m8 – 16m6) ÷ (2m3) these kinds of questions confuse the heck out of me please help and explain(:

  • one year ago
  • one year ago

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  1. ajprincess Group Title
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    is ur first question? .(–10x3 + 30x – 20) ÷ (–5x + 5) or else .(–10x2 + 30x – 20) ÷ (–5x + 5)?

    • one year ago
  2. ajprincess Group Title
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    @FullHouseSquidy

    • one year ago
  3. FullHouseSquidy Group Title
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    these are the questions. sorry i wrote them down wrong: (-10x^3+30x-20) / -5x+5 (8m^7 – 10m^5) ÷ 2m^3 (–6m^9 – 6m^8 – 16m^6) ÷ (2m^3)

    • one year ago
  4. ajprincess Group Title
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    Let us try to do the first question. Can u factorise (-10x^3+30x-20)?

    • one year ago
  5. FullHouseSquidy Group Title
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    no you cant

    • one year ago
  6. ajprincess Group Title
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    \(-10x^3+30x-20=-10x^3+3*10x-2*10\) do u see anything common to all three terms?

    • one year ago
  7. FullHouseSquidy Group Title
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    10

    • one year ago
  8. ajprincess Group Title
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    right:) when u factor it out what remains?

    • one year ago
  9. FullHouseSquidy Group Title
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    -2^3+3-2?

    • one year ago
  10. FullHouseSquidy Group Title
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    oh wait its -z^3+3-2

    • one year ago
  11. ajprincess Group Title
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    \(-10x^3+3*10x-2*10=10(-x^3+3x-2)\) getting it?

    • one year ago
  12. FullHouseSquidy Group Title
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    yeah i get that

    • one year ago
  13. ajprincess Group Title
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    good:) Can u factorise -5x+5?

    • one year ago
  14. FullHouseSquidy Group Title
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    -5(x+1)

    • one year ago
  15. ajprincess Group Title
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    -5x+5=-5(x-1)

    • one year ago
  16. FullHouseSquidy Group Title
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    oh ok

    • one year ago
  17. ajprincess Group Title
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    \[\frac{ -10x^3+30x-20 }{ -5x+5 }=\frac{ -10(x^3-3x+2) }{ -5(x-1) }=\frac{ -5*2( x^3-3x+2) }{ -5(x-1) }\] do u see anything common in both denominator and numerator?

    • one year ago
  18. FullHouseSquidy Group Title
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    the -5 and x?

    • one year ago
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