yveteriveraaa yveteriveraaa
  • 16-08-2021
  • Mathematics
contestada

What are the solutions to the system of equations? {y=2x2+6x−10 y=−x+5

Respuesta :

FancyBun
FancyBun FancyBun
  • 16-08-2021
Answer: x = -5, 3/2 y = 10, 7/2

Explanation:

y = 2x^2 + 6x - 10 (1)
y = - x + 5 (2)

=> 2x^2 + 6x - 10 = - x + 5
2x^2 - 7x - 15 = 0
(2x - 3)(x + 5) = 0
=> 2x - 3 = 0
2x = 3
x = 3/2
=> x + 5 = 0
x = -5

According to (2):

y = -x + 5
y = -(-5) + 5
y = 5 + 5 = 10

y = -x + 5
y = -(3/2) + 5
y = -(3/2) + 10/2
y = 7/2

Answer Link
Parbatapoudel
Parbatapoudel Parbatapoudel
  • 16-08-2021

Answer:

I think this is mistake because y=2x^2+6x-10 y=x+5 this is the right

Answer Link

Otras preguntas

read this excerpt from Tim O’Brien‘s “Ambush” “I had already pulled the pin on a grenade. I had come to a crouch” which literary device is most clearly shown i
What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12
In addition, sperm receive a chemical fluid from the _____________.
How do I simply this expression (quadratic formula basis) on a TI-84 or normal calculator?
An example of what is geese flying south for the
How do i use this to get the right answer ​
ABCD is a square. what is the measure of angle BAC
Calculation (show your work)​
Read the statement below then decided whether you agree or not. The story of J.r. Simplot is a great American success story that anyone can admire
Which of the following represents a negatively charged ion? OF T 7