keannaspam7 keannaspam7
  • 04-08-2020
  • Mathematics
contestada

Solve the following non-linear system of equations algebraically.
y = - 2x² - 4x + 5 and
y = 2x^2 + 4x + 5

Respuesta :

raskolnikov
raskolnikov raskolnikov
  • 04-08-2020

Answer:

x = -2

Step-by-step explanation:

since y is common in both equations, you can equate them to be equal

-2x² - 4x + 5 = 2x² + 4x + 5

4x² + 8x = 0

factor out 4x

4x(x + 2) = 0

divide both sides by 4x

x + 2 = 0

x = -2

Answer Link

Otras preguntas

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that whe
What does ¿Cuál es la fecha de mañana? mean and how would you reply?
7kg of soybean oil which costs $4/kg was combined with 14kg of canola which costs $1/kg. Find the cost per kg of mixture.
A man exchanged a dollar bill for change and received 7 coins, none of which were half dollars. How many of these coins were dimes?
What is a list of countries without volcanoes?
The frequency of violet light is 7.5x10 to the 14th power hertz. What is the wavelength?
You begin solving the equation 4 – 5x = 59 by subtracting 4 from both sides. Which is the best choice for Step 2?
How would I find the slope intercept form of x+y+3=0?
Evaporation: Evaporation is the process where a _________ changes into a _________.
Which of the following occurs during anaphase I of meiosis? (A) Formation of tetrads (B) Separation of homologous chromosomes (C) Crossing over (D) Separation o