minouch76 minouch76

08-12-2017
Mathematics

contestada

Démontrer que x²-4x+5=(x-2)²+1 ; En déduire que x²-4x+5=0 n'a pas de solution

Respuesta :

rebelzane1 rebelzane1

08-12-2017

1st: toute valeur de x rend I'équation vraie
tous les nombres réels

2nd: résoudre l'équation pour x en trouvant a, b et c du quadratique puis en appliquant la formule quadratique
x = 2 ± i

Answer Link

Otras preguntas

name at least four different areas that historians may choose as a focus for their study

____ took over several german colonies in the pacific, and _____ seized new guinea

which best describes probability

When an object is burning, two atoms of oxygen (in the air) combine with one atom of carbon (from the substance burning). this produces three atoms that combine

How many solutions can a single variable linear equation contain? Select all that apply. *no solution *infinite number of solutions *two solutions *one solution

Which pair of numbers is relatively prime? a. 7 and 42 b. 16 and 39 c. 66 and 77 d. 90 and 891 user: are 30 and 138 relatively prime numbers

why do most volcanos not erupt all the time ?

Which words in the preamble to the united states constitution suggest that the government has authority to set up Which words in the preamble to the united sta

In Franz Kafka's The Metamorphosis, when Mr. Samsa first sees Gregor transformed into an insect, he makes a fist at him as if to punch him. What does this actio

By 1526 the __________ Empire ruled almost the entire Indian subcontinent. Aryan Mughal British Mauryan