Seudónimo Seudónimo
  • 02-04-2021
  • Mathematics
contestada

Find all the roots of the polynomial equation

x^3-2x^2+5x-10=0

Respuesta :

Аноним Аноним
  • 02-04-2021

Step-by-step explanation:

x^3+x^2+4x+4=0

x³+x²+4x=-4

x(x²+x+4)=-4

either

x=-4

or

x²+x+4=-4

x²+x+4+4=0

x²+x+8=0

comparing with ax² +bx+c

a=1

b=1

c=8

x={-1±√{1²-4×1×8}}/2×1

x={-1±√{-31}}/2

Answer Link

Otras preguntas

Which of these best describes a hormone? A. A chain of amino acids secreted by a gland B. A neurotransmitter with a specific target C. A neurotransmitter carrie
I have a geometry question thank you!
What are the best ways for memorising vocabularies in a foreign language ?​
State and explain five uses of the metropolitan area network
Which propaganda technique is being used in the following statement? "In my last term as class president we had more class trips, more guest speakers, and a bet
Which expression is equivalent to ( 4^(1/3) × 4^(2/6) ) ^(3/4) ( ---------÷------------ ) ( 4^(5/6) ) *All the numbers in the division pro
a transverse wave passes through a slinky​
What else would need to be congruent to show that ABC = XYZ by ASA
which of the following sets of inequalities​
Fe + H₂O → Fe3O4+H₂ help