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

Which two hormones are secreted from the same gland but oppose the action of one another?

What is the climax for Rikki Tikki Tavi

One purpose of the Marshall Plan of 1948 was to (A) rebuild European economies to make communism less appealing (B) aid the depressed agricultural economies of

Producing an RNA copy of a DNA strand is referred to as __________.

One purpose of the Marshall Plan of 1948 was to (A) rebuild European economies to make communism less appealing (B) aid the depressed agricultural economies of

suppose that x and y are both integers. find the solution of 10x^2+11xy+3y^2=7

What is 216.231 each decimal in words

The chief reason given by Woodrow Wilson for requesting a declaration of war against Germany in 1917 was the (A) refusal of Germany to accept the Fourteen Point

What did J.J. Thomson discover about the atom that changed the atomic model previously used?

$1.06 what is it rounded to the nearest cent