jacquesroberts jacquesroberts
  • 03-04-2014
  • Mathematics
contestada

6x squared plus 12x plus 13 equals 2x squared plus 4

Respuesta :

Аноним Аноним
  • 03-04-2014
[tex]12x^2+12x+3=2x^2+4\\\\12x^2-2x^2+12x+3-4=0\\\\10x^2+12x-1=0\\\\a=10;\ b=12;\ c=-1\\\\\Delta=12^2-4\cdot10\cdot(-1)=144+40=184\\\\x_1=\frac{-b-\sqrt\Delta}{2a};\ x_2=\frac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{184}=\sqrt{4\cdot46}=2\sqrt{46}\\\\x_1=\frac{-12-2\sqrt{46}}{2\cdot10}=\frac{-6-\sqrt{46}}{10};\ x_2=\frac{-12+2\sqrt{46}}{2\cdot10}=\frac{-6+\sqrt{46}}{10}[/tex]
Answer Link

Otras preguntas

[tex] \sqrt[3]{( - 64)} [/tex]​
From the bar graph generated in the virtual lab (see below), how do the dewlap colors of the two species compare?
Why did Spain finally give up Florida to the United States .
How is the federal court system structured?
The probability of a white chicken and a black chicken having a checkered chicken is ________ and is an example of ________ A- 50% incomplete dominance B- 100%
What type of change occurs during a chemical reaction?
5n +5 to a one term expression with two factors. please help i dont understand 30 points
PLZZZZZZZZZZZZZ HELPPPPPPPPP
Organize the following list of atoms from highest to lowest Atomic Radius: Sulfur, Aluminum, Sodium, Chlorine, Argon, Silicon
Should local police departments work with federal agencies to enforce immigration policies? Why or why not?