Question

1) x² - 5x + 6 =0
$x² - 5x + 6 =0$

​

Answer 1

Explicação passo-a-passo:

x²-5x+6=0

a=1

b=-5

c=6

∆=b²-4ac

∆=(-5)²-4×1×6

∆=25-24

∆=1

-b±√∆/2a

5±√1/2×1

5±1/2

x¹=5+1/2=6/2=>3

x²=5-1/2=4/2=>2