Question

X2-5x+6=0............

Answer 1

∆=(-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 ✓

Answer 2

Resposta:

2x-5x+6=0

2x+5x=0-6

7x= -6

-6/7 = 1

Explicação passo-a-passo: