Manzur278
Manzur278
06-07-2015
Mathematics
contestada
Solve x2 - 7x = -13
Respuesta :
Benjamin16
Benjamin16
10-07-2015
[tex]x^{2}-7x=-13 \\ \\ x^{2}-7x+13=0 \\ \\ \Delta=(-7)^{2}-4*1*13=49-52=-3 \implies x\not\in R \\ \\ \sqrt{\Delta} =i \sqrt{3} \\ \\ x_{1}= \frac{7-i \sqrt{3} }{2} \\ \\ x_{2}= \frac{7+i \sqrt{3} }{2} [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 43+ )
Otras preguntas
in order for a living organism to substain its life it must be able to
1.Which change occurred during world war i as a result of "total war"?A)Colonies In Africa and Asia gained their freedom from foreign rule.B)Democratic nation's
The Third Estate in France was made up of which of the following groups?Here are the optionsmiddle class known as bourgeoisie nobility peasants clergy urban wor
Meg needs to have her car repaired. Parts will cost $905, and the labor cost for the job is $499. What will be the total cost for the job? Check your answer us
Two cable ferries start moving towards each other from shores A and B. When the pass each other for the first time the distance to shore B is 100 meters. Once t
The FIFA series of video games are some of the most popular sporting games out Wthere. But which sport do they focus on?
HELP ASAP!! DUE TOMORROW!! WILL MARK AS BRAINLIEST IF ANSWERED NOW!! In one paragraph, analyze the following quote: "A lot of mothers will do anything for their
In close comparisons, external fertilization often yields more offspring than does internal fertilization. however, internal fertilization typically offers the
Why do moderate levels of disturbance result in an increase in community diversity? why do moderate levels of disturbance result in an increase in community div
Compare the exponential and logarithmic models of population growth
