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

A full lake begins dropping at a constant rate. After 4 weeks it has dropped 3 feet. What is the unit rate of change in the lake's level compared to it's full l
#4 help me please Please Please
In at least 150 words, make an argument for or against the ability of citizen movements to bring about changes in government policy. HELPPPP PLEASE HURRY
NEED HELP SOON!!!! for any numbers a, b, and c, a(b + c)=ab+ac
Which of the following is an accurate statement? The Olmec were loyal to an emperor who ruled a strong army. The Incan emperor conquered neighboring peoples and
Which of the following is the correct expansion of (x + 3)(x - 4)? A.x2 - 7x + 12 B.x2 - x + 12 C.x2 + 7x - 12 D.x2 - x - 12
Read the excerpt from Hammurabi’s Code. “If a man has knocked out the eye of a patrician [aristocrat], his eye shall be knocked out. . . If he has knocked out
Which phrase best completes the dialogue? —¿Qué haces _____? —Yo voy al cine. A. los fines de semana B. va de compras C. ir al cine D. tiempo libre
2.1 x10^3 + 2.1 x 10^2
Explain the concept of manifest destiny and how that contributed to america's expansion?