Question

Resolva as equaçoes de 2 grau, admitindo U=R:
A. x elevado a 2-5x=0

Answer 1

x² - 5x = 0

Coeficientes:

A= 1

B= - 5

C= 0

Calculando Delta:

∆= b² - 4ac

∆= ( - 5)² - 4 • 1 • 0

∆= 25 - 0

∆= 25

Aplicando Fórmula de Bhaskara:

x= - b ± √∆ / 2a

x= - ( - 5) ± √25 / 2 • 1

x'= 5 + 5/2 = 10/2 = 5

x''= 5 - 5/2 = 0/2 = 0

S= ( 0 , 5)