Question

x ao quadrado- 5x +6= 0​

Answer 1

x² - 5x + 6 = 0

a = 1

b = -5

c = 6

Δ = b² - 4.a.c

Δ = (-5)² - 4.1.6

Δ = 25 - 24

Δ = 1

-b ± √Δ / 2.a

x = - (-5) + √1 / 2.a

x = 5 ± 1 / 2.1

x = 5 ± 1 / 2

x¹ = 5 + 1 / 2

x¹ = 6 / 2

x¹ = 3

x² = 5 - 1 / 2

x² = 4 / 2

x² = 2