melissadomingooszuy6 melissadomingooszuy6
  • 12-07-2017
  • Mathematics
contestada

What is the solution set for the open sentence with the given replacement set? x2 + 2 = x + 8, {1, 3, 4, 5}

Respuesta :

bcalle
bcalle bcalle
  • 12-07-2017
x^2 + 2 = x + 8
x^2 - x + 2 - 8 = 0
x^2 - x - 6 = 0
Input 1 => 1^2 - 1 - 6 = 1 - 1 - 6 = -6
Input 3 => 3^2 - 3 - 6 = 9 - 3 - 6 = 0
Input 4 => 4^2 - 4 - 6 = 16 - 4 - 6 = 6
Input 5 => 5^2 - 5 - 6 = 25 - 5 - 6 = 14

Solution set { -6, 0, 6, 14}
Answer Link

Otras preguntas

There are 2 prime numbers between 100 and 199 such that the tens digit is a prime number, the ones digit is a prime number, and the tens and ones digits taken t
what's 20*62+100-70?
What two things affect the density of Water?
Marisa can buy 3 oranges for 1.35 dollars ,four oranges for $1.80 or five oranges for $2.25 per second by 10 oranges for a price that fits this pattern or a bag
What is the definition of the War Guilt Clause?
34 is 25% of what numbet, please explain.
What countries border England?
rough textured rocks have what type of grains
use a calculator to solve each equation: -5.5x + 0.56 = -1.64 -4.2x + 31.5 = -65.1 k/5.2 +81.9 =47.2
Me need essay in the book ''lyddie'' Answer the question - Should Lyddie Sign the Petition? Need to write at least 3 paragraphs .... I need your help !!!!