Mathematics

Question

Solve using polynomial equations by factoring and using the principle of zero product.

X^3 - 27 =0

2 Answer

  • here x^3-27=0 can be written as
    x^3=27 and it also can be,
    x^3=3^3
    then on comparing both we got ,
    x=3..
    Hope it will satisfy you
  • (x-3)(x^2+3x+27) = 0
    ---
    Solve the quadratic factor:
    x^2 + 3x + 27 = 0

    x = [-3 +- sqrt(9-4*27)/2
    ---
    x = [-3 +- sqrt(-99)]/2
    --
    x = [-3+-3sqrt(11)i]/2 (2 complex number solutions)
    x = 3 (the Real Number solution)
NEWS TODAY