Question

3x²-10x-8=0 min ajundem a resolver

Answer 1

delta = b² - 4.a.c
delta = (-10)² -4.3.(-8)
delta = 100 + 96
delta = 196

x = - b±√denta/2.a
x = -(-10)±√196/2.3
x = +10 ±14/6
x¹ = +10 - 14/6
x¹ = -4/6

x² = +10 +14/6
x² = 24/6
x² = 4

Answer 2

Resposta:

delta = b² - 4.a.c

delta = (-10)² -4.3.(-8)

delta = 100 + 96

delta = 196

x = - b±√denta/2.a

x = -(-10)±√196/2.3

x = +10 ±14/6

x¹ = +10 - 14/6

x¹ = -4/6

x² = +10 +14/6

x² = 24/6

x² = 4

Explicação passo a passo: