angrynoodle angrynoodle
  • 09-02-2019
  • Mathematics
contestada

what are the real or imaginary solutions of the polynomial x^4-3x^2=-2x​

what are the real or imaginary solutions of the polynomial x43x22x class=

Respuesta :

zizoux07p0ac3m
zizoux07p0ac3m zizoux07p0ac3m
  • 09-02-2019

Answer:

x = 0 or 1 or -2

Step-by-step explanation:

[tex]x^{4} -3x^{2} +2x=0[/tex]

x(x^3-3x+2)=0

x(x-1)^2 * (x+2)0

so x = 0 or 1 or -2

there is no imaginary solutions

Answer Link
patelvruti2017
patelvruti2017 patelvruti2017
  • 09-02-2019

x⁴-3x²= -2x


Step-by-step:


x⁴-3x²+2x=0

x*(x³-3x+²)=0

x*(x³-4x+x+2)=0

x*(x*(x²-4)+x+2)=0

x*(x*(x-2)*(x+2)+1)=0

x*(x+2)*(x*(x-2)+1)=0

x*(x+2)*(x²-2x+1)=0

Using a²-2ab + b²=(a-b)², factor the expression.

x*(x+2)*(x-1)²=0

Therefore x=0

Therefore x+2=0

(X-1)²=0


X=0

X=-2

X=1


Therefore

x1 is -2

x2 is 0

x3 is 1.


Answer Link

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