mikebramblett56 mikebramblett56
  • 23-05-2016
  • Mathematics
contestada

What are the solutions of the equation x6 + 6x3 + 5 = 0? Use factoring to solve.

Respuesta :

W0lf93
W0lf93 W0lf93
  • 13-05-2017
To get the solutions to the equation x^6 + 6x^3 + 5 = 0 using factoring. Expanding x^6 + 6x^3 + 5 = 0 gives x^6 + x^3 + 5x^3 + 5 = 0, Factoring x^6 + x^3 + 5x^3 + 5 = 0 gives x^3(x^3 + 1) + 5(x^3 + 1) = 0, Grouping x^3(x^3 + 1) + 5(x^3 + 1) = 0 gives (x^3 + 5)(x^3 + 1) = 0 Solving (x^3 + 5)(x^3 + 1) = 0 gives x^3 + 5 = 0 or x^3 + 1 = 0 x^3 = -5 or x^3 = -1 x = cube root of -5 or x = cube root of -1 x = -1.71 or x = -1
Answer Link

Otras preguntas

I don’t remember how do to any of them
Which of the following best describes nonessential amino acids? O A) They cannot be made by the body and must be obtained from the diet. B) They are made when t
Abby did 212 sit-ups in 8 minutes.Estimate the number of sit-ups she did in 1 minute
help? with complete solution​ please help me please
What method would you use to separate sand from gasoline?
F(x)= x^3+4x^2-5x-20;x+4
katryn owes her father $25.write this number as an integer.
If u know please answer
Find the percent of change from 10 yards to 15 yards 1. 5% 2. 33% 3. 15% 4. 50%
Jane was very upset when she discovered that her aunt was suffering from an asthma she now wants to help reduce air pollution in our area which action will best