nurulfalisha nurulfalisha

04-08-2021
Mathematics

contestada

plss helppp!!

pls show how is it done

solve the equation :

x³ = 3x² + 3x - 1

Respuesta :

mhanifa mhanifa

04-08-2021

Answer:

x³ = 3x² + 3x - 1
x³- 3x² - 3x + 1 = 0
(x³ + 1) - 3x(x + 1) = 0
(x + 1)(x² - x + 1 - 3x) = 0
(x + 1)(x² - 4x + 1) = 0
(x + 1)(x² -4x + 4 - 3) = 0
(x + 1)((x - 2)² - (√3)²) = 0
(x + 1)(x - 2 + √3)(x - 2 - √3) = 0

x = -1
x = 2 - √3
x = 2 + √3

Answer Link

Otras preguntas

Three ways to prevent teachers strikes

How do i Evaluate (5)(6+1-3)

Four numbers have a mean of 9 and a median of 6. The four numbers are 2,5,a,b. Find the value of a and b

The radius of circle M is 5 cm, the radius of circle N is 3 cm, and the radius of circle L is 3 cm. What is the perimeter of triangle LMN? SHOW YOUR WORK. Hint:

A Hawaiian volcano in Mauna Loa has been studied by scientists since the 1950s. Part of that study has involved investigating the greenhouse effect. They have t

My life at top flight

7. Evan answered 80% of all the questions on his science test correctly. If he answered 20 questions correctly, write and solve an algebraic equation to determi

WILL GIVE BRAINLIEST 200 POINTS Score for Question 4: ___ of 6 points) 4.Use the data from the experiment table Temperature and Time During Change of Phase:

For which career path is a mastery of basic computer skills a requirement

Early India civilization, how did the three unique religions develop from these early civilizations