Question

6x ao quadrado menos 5x mais 1 igual a zero

Answer 1

6 x² - 5 x + 1 = 0
Δ = b² -4 .a .c
Δ = (-5)² - 4 .6 . 1
Δ =  25 - 24
Δ = 1
\/¨1 = 1
x = -b +ou-1/2.6
x = -(-5) +ou-1/12
x = 5 +ou-1/12
x´= 5 + 1 /12
x´= 6/ 12
x´= 1/6
x" = 5 - 1 /12
x" = 4/12
x" = 1/3
S = {1/6,1/3}