amiegoodson amiegoodson
  • 04-11-2019
  • Mathematics
contestada

Solve system of equation y=x^2+3x+1,y=-x-3

Respuesta :

Аноним Аноним
  • 04-11-2019

Answer:

Point Form: (−2,-1)

Equation Form:x=  −2,  y=  −1

Step-by-step explanation:

Answer Link
cinderofsoulsss
cinderofsoulsss cinderofsoulsss
  • 04-11-2019

Answer:

x = -2

y = -1

Step-by-step explanation:

y = x² + 3x + 1       y = -x -3

Set the equations equal to each other:

x² + 3x + 1 = -x - 3

Move all terms to one side:

x² + 3x + x + 1 + 3 = 0

x² + 4x  + 4 = 0

factor:

(x + 2)² = 0

take square root of both sidesL

x + 2 = 0

subtract 2 from both sides:

x = -2

Plug -2 in for x in either of the equations:

(-1)²+3(-1)+1 = y

y = -1

Answer Link

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