LukeNuno
LukeNuno
03-12-2014
Mathematics
contestada
Solve for x:
x2 + 8x = -1
Respuesta :
konrad509
konrad509
03-12-2014
[tex]x^2+8x=-1\\ x^2+8x+16-16=-1\\ (x+4)^2=15\\ x+4=\sqrt{15} \vee x+4=-\sqrt{15}\\ x=-4+\sqrt{15} \vee x=-4-\sqrt{15}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 57+ )
Otras preguntas
can 39/121 be simplified and if so what is it??
Why do speakers who give persuasive speeches often use connotation? a. They are trying to bring about an emotional response. b. They use connotation as a rhetor
A survey showed that 28% of adults play golf in their free time. Out of 1550 adults, predict how many would say they play golf
which of the following characterizes the different post-war goals of the unites states and the soviet union?
Write the balanced equation for the reaction given below: C2H6 + O2 --> CO2 + H2O. If 16.4 L of C2H6 reacts with 0.980 mol of O2, how many liters of carbon d
Miguel used 6 cubes to make this 3-step staircase. If he uses a total of 45 cubes to make a similar staircase, how many steps will the staircase have?
How did women's rights differ in Greek and Persian civilizations during the classical era ?
Which of th following statements is true of setting realistic goals? A) It cannot reduce the level of stress in your life B) It can help manage stress levels be
What is true about the volume or surface area of these prisms? A. The surface area of "A" is greater than the surface area of "B." B. The surface area of "B" is
0.25k + 1.5 − k − 3.5 Combining like terms with rational coefficients
