Question

x elevado a 2 -4x+3=0​

Answer 1

x² - 4x + 3 = 0

A= 1

B= - 4

C= 3

∆= b² - 4ac

∆= ( - 4)² - 4 • 1 • 3

∆= 16 - 12

∆= 4

x= - b ± √∆ / 2a

x= - ( - 4) ± √4 / 2 • 1

x'= 4 + 2/2 = 6/2 = 3

x''= 4 - 2/2 = 2/2 = 1

S= ( 3 , 1)