aidan1506 aidan1506
  • 09-08-2021
  • Mathematics
contestada

Evaluate the following expression for x = -1 and y = 2
X3-3(x+2y)
Please help

Respuesta :

luisakkoz577
luisakkoz577 luisakkoz577
  • 09-08-2021

x = -1 e y = 2

x = -e y = 2

Figura geométrica

punto

Derivadas parciales

d/dx(2) = 0

d/dy(2) = 0

X3-3(x+2y)

X^3 - 3 (x + 2 y)

Figura geométrica

avión

Forma alternativa

-3 x + X^3 - 6 y

Raíz real

y = 1/6 (X^3 - 3 x)

Raíz

y = 1/6 (X^3 - 3 x)

Discriminante polinómico

Δ_X = -243 (x + 2 y)^2

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