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Tainted

Add. (x5 + 7x3 - 9) + (4x5 - 2x3 + 13) 5x5 + 5x3 + 4 4x5 - 5x3 - 4 4x5 + 9x3 + 22 5x5 + 9x3 - 22

  • one year ago
  • one year ago

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  1. Tainted
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    New to polynomials

    • one year ago
  2. aaronq
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    does x5 mean x^5?

    • one year ago
  3. Tainted
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    yes it does

    • one year ago
  4. aaronq
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    so ill do one (x^5 + 7x^3 - 9) + (4x^5 - 2x^3 + 13) (1)break brackets.. in this case it's easy just remove them but if you had a negative sign infront of the bracket you need to change signs for everything inside that bracket eg -(1-3+5) = -1+3-5 (2) collect like terms .. group terms so you can visualize which ones are able to be added up. Since you can only add variables (in this case, "x") together when they're raised to the same power. e.g. x^2 +x^4 + 3x^2 +x^8 x^2 + 3x^2 + x^4 +x^8 = 4x^2 + x^4 + x^8 (3) write in increasing order of power

    • one year ago
  5. aaronq
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    wait i forgot to do it =(x^5 + 7x^3 - 9) + (4x^5 - 2x^3 + 13) =x^5 + 7x^3 - 9 + 4x^5 - 2x^3 + 13 = 7x^3- 2x^3+ x^5+ 4x^5 + 13 = 5x^3 + 5x^5 +13

    • one year ago
  6. jenish
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    5x5 + 5x3 + 4

    • one year ago
  7. aaronq
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    haha oh yeah i missed the x-less number thanks for correcting me

    • one year ago
  8. jenish
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    x5 + 7x3 - 9 + 4x5 - 2x3 + 13 x5 +4x5 +7x3-2x3 -9+13 =5x5 + 5x3 + 4

    • one year ago
  9. jenish
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    no problem :)

    • one year ago
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