Question

a) x2 - 5x + 6 = 0 Me ajudam por favor​

Answer 1

2x -5x +6 =0 :

5x-2x= 0-6

3x= -6

x= -6/3

-6/3 = -2

resposta: -2

Answer 2

x² - 5x + 6 = 0

A= 1

B= - 5

C= 6

∆= b² - 4ac

∆= ( -5)² - 4 • 1 • 6

∆= 25 - 24

∆= 1

x= - b ± √∆ / 2a

x= - (- 5) ± √1 / 2 • 1

x'= 5 + 1/2= 6/2 = 3

x''= 5 - 1/2 = 4/2 = 2

S= ( 2 , 3)