carol94 carol94
  • 03-11-2014
  • Mathematics
contestada

i need help with math 1010
completing the square
x^2-9x=10

Respuesta :

konrad509
konrad509 konrad509
  • 03-11-2014
[tex]x^2-9x=10|+20.25\\ x^2-9x+20.25=30.25\\ (x-4.5)^2=30.25\\ x-4.5=5.5 \vee x-4.5=-5.5\\ x=10 \vee x=-1[/tex]
Answer Link

Otras preguntas

Molecular scientists can read the DNA code and compare the DNA of different organisms. This concept is used in molecular clocks to determine which of the follow
What's the word for wandering about; tending to move around, travel
what is 12minus 2 multiply 6 plus 2 divide by 2
The diameter of a cylinder is 6 feet 6 inches. The height of a cylinder is 12 feet 3 inches. What is the surface area?    (feet squared)What is the volume?
what is glossities and deficiency
What is the highest mountain on each continent?
What's the term for: unwilling to bend; unyielding
If 2/5 of a number is added to 1/3 of the same number ,the sum is 22. What is the number?
What's the word for wandering about; tending to move around, travel
Heat is released when H2 gas and O2 gas react to form H2O. Why? A. Breaking the H–H bond in H2 gas releases heat. B. Breaking the O–O bond in O2 gas releases he