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

Whom was Mary planning to marry? Zacharias Joseph Jude Boaz
*Will give brainliest. $1,500 is invested into an account with an interest rate of 6.75%. How many years will it take for the account to reach $7,300? Round to
What is the 40th term of the arithmetic sequence? 21,18,15,12,9.... A: -99 B: -96 C: 6 D: 138
whats the difference of 1cm and 1cm2
The GCF of the numbers in the expression (32 + 16) is . The numbers left inside the parentheses after factoring out the GCF are and .
Which of these statements is correct about Newton's first law of motion? A. It states the meanings of motion and force. B. It justifies the meanings of motion
Write a problem you can use to make a table strategy to solve then solve the problem
Which graph represents a linear function? A coordinate plane is shown with a curved line that starts in the bottom left area of the graph, passing through the
P(-6,5); y= 2x - 3what is the equation of the perpendicular line that contains line p?
#14 Helppppp me plz this make no sense to me