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How many positive real roots are there in x^3+3x^2-x-3=0

a. 1 c. 2
b. 3 d. 4

Answers

  • Réponse publiée par: batopusong81

    B. 3

    if we factor the following equation:

    {x}^{3}  + 3 {x}^{2}  - x - 3 = 0

    we will get the following factors

    (x + 3)(x - 1)(x + 1)

    Now to get the roots we transform them to zero theorem: x=0

    Just add the number that will remove the number beside x to the both sides.

    x+3-3=0-3

    x = -3

    x-1+1=0+1

    x = 1

    x+1-1=0-1

    x = -1

    The roots are -3,1,-1

    The number of roots : 3

  • Réponse publiée par: abbigail333

    answer:

    4

    tama po yan thanks po sa points

  • Réponse publiée par: stacy05

    answer:

    omai Ang hirap nyan

    Step-by-step explanation:

    thankyou sa pointss btw stay safe

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How many positive real roots are there in x^3+3x^2-x-3=0 a. 1 c. 2 b. 3 d. 4...