kitkat1999 kitkat1999
  • 21-10-2014
  • Mathematics
contestada

How do you do problems like x^2+x-20 less then or equal to 0 
I am clueless on how to do this. 
Please help me. >_<

Respuesta :

konrad509
konrad509 konrad509
  • 21-10-2014
[tex]x^2+x-20\leq0\\ x^2+5x-4x-20\leq0\\ x(x+5)-4(x+5)\leq0\\ (x-4)(x+5)\leq0\\ x\in[-5,4][/tex]
Answer Link

Otras preguntas

how to convert 37 \ 4 to a mixed number
what is the sum of 3/8 and 1/16
What are some ways that propaganda posters were used to influence americans behavior during world war 1
56.38,51.28,46.18,41.08 what is the rule
under Franklin Roosevelt good neighbor policy
What is the least common multiple of 3, 6, and 7?
4n^2-16 factor the quadratic
Which geologic period lasted for almost 7/8 of earth’s history? A. the Precambrian time B. the Quaternary Period C. the Carboniferous Period D. the Phaneroz
Orange juice is a solution that contains citric acid, which gives orange juice an approximate pH of 3.5. Which substance is more acidic than orange juice?
Adam Smiths Wealth of Nations stressed the importance of?