Question

3x² + 11x - 4 = 0
alguém sabe???​

Answer 1

Resposta:

https://www.google.com/search?q=3x%C2%B2+%2B+11x+-+4+%3D+0&oq=3x%C2%B2+%2B+11x+-+4+%3D+0&aqs=chrome..69i57j69i60&sourceid=chrome&ie=UTF-8

a conta esta la

Answer 2

Explicação passo-a-passo:

A = 3 B = 11 C = -4

Δ = B² - 4.A.C

Δ = 112 - 4.3.(-4)

Δ = 121 + 48

Δ = 169

X = -B +- √Δ / 2.A

X = -11 +- √169 / 2.3

X = -11 +- 13 / 6

X| = -11 + 13 / 6

X| = 2 / 6

X| = 0,33

X|| = -11 - 13 / 6

X|| = -24 / 6

X|| = -4