marlisamoore
marlisamoore
01-09-2017
Mathematics
contestada
can someone help me with this question
Respuesta :
Banabanana
Banabanana
01-09-2017
[tex] x^{2} +2x-5=0 \\ D=b^2-4ac=2^2-4*1*(-5)=4+20=24 \\ x_{1,2}= \frac{-bб \sqrt{D} }{2a}= \frac{-2б \sqrt{24} }{2}=\frac{-2б 2\sqrt{6} }{2}= \frac{-2}{2}б \frac{2 \sqrt{6} }{2} =-1б \sqrt{6} [/tex]
Answer:
B. x = -1 - √6
C. x = -1 + √6
Answer Link
VER TODAS LAS RESPUESTAS ( 58+ )
Otras preguntas
what is 1/3 + 3/8 = ? (please show work)
Chuck is having carpet installed in a small office. It will cost $75.00 for a room that measures 6ft X 5ft. At this rate, how much would it cost to have carpet
SOMEONE HELP ME THIS IS DUE SOON PLEASEE!!!!! im about to cry school is aggravating
From a database point of view, the collection of data becomes meaningful only when it reflect
Why did US lawmakers (Congress) support the Indian Removal Act?
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I
An author writes 22 pages of her book each week she has already written 58 pages and expect to have 280 pages in her first draft how long will it take the autho
What type of number is 3- 719i Select all that apply Real Imaginary Complex
The average rate of change of f(x)= x^2- x + 4 from x =2 to x= 4
Please answer the question below. And also, please don't put unhelpful things as an answer.
