paige7181
paige7181 paige7181
  • 20-06-2019
  • Mathematics
contestada

Please HELPP!!! Solve the system of equations.
y= 2x
y= x^2 - 15

Respuesta :

konrad509
konrad509 konrad509
  • 20-06-2019

[tex]y=2x\\y=x^2-15\\\\x^2-15=2x\\x^2-2x-15=0\\x^2-5x+3x-15=0\\x(x-5)+3(x-5)=0\\(x+3)(x-5)=0\\x=-3 \vee x=5\\\\y=2\cdot(-3) \vee y=2\cdot5\\y=-6 \vee y=10\\\\(x,y)\in\{(-3,-6),(5,10)\}[/tex]

Answer Link

Otras preguntas

Suppose that a constant force is applied to an object. Newton's Second Law of Motion states that the acceleration of the object varies inversely with its mass.
it is given that 2(3+x)=6+2x. this is an example of the ____ property.
Ganymede is one of the many moons of jupiter. it is nearly a sperical in shape. it is larger than the planet mercury and slightly smaller than the planet mars.
List three main stages of the cell cycle in order
what sparked the development of the Second Industrial RevolutionA- the development of a better way to produce iron cheaplyB- a better way of producing steam and
64 divided by 2 (15 points)
JK=KL NK =KM given JKN =LKM is it asa ssa
How do covalent molecules form?
Jessica rode 9 miles father than Roger rode.Let r represent the.number of mile Roger rode.Write an expression for the number of miles Jessica rode.
to create animals that have the characteristics of both species, some people have bread Buffalo and cattle together. This is an example of...A) inbreeding; B) h