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Polynomials

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Can someone please help me get the sum difference and product of this problem I am so lost
x^3+ 2x-5∶ x^4-x^3+ 3x^2- 2x+3

  • Polynomials - ,

    Hey, Terrence. As I said before,

    what does the ":" mean? If it just separates two polynomials, then if we call them f(x) and g(x),

    f+g = x^3 + x^2 + 2x - 2
    f-g = -x^3 + 3x^2 - 2x
    f*g = 2x^5 - 2x^4 + 3x^3 - x^2 - 2x + 1

  • Polynomials - ,

    Hmm. different problem, so disregard the above.

    sum: x^4+3x^2-3
    diff: -x^4 + 2x^3 - 3x^2 + 4x - 8
    prod: x^7 - x^6 + 5x^5 - 9x^4 + 14x^3 - 19x^2 + 16x - 15

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