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 ( 63+ )
Otras preguntas
Is it 15, 24, 30, 42, or 48?!
Part A: Solve –mk – 110 > 75 for m. Show your work. (4 points) Part B: Solve 2c – 8f = 24 for f. Show your work. (6 points)
How does Douglass use the word choice and literary references to confirm his credibility ?
Please can someone help me!! It’s so important!!!
Which sentence describes this picture? A. La camarera está cocinando la comida. B. La camarera está sazonando la comida. C. La camarera está decorando la com
State the expression (10 + 16) x 49. A) Ten plus sixteen times forty nine B) The sum of ten and sixteen and forty-nine C) The product of sixteen and forty-nin
Here’s a paragraph: In Africa, in the country of Ghana, there once lived a man who had three sons. Once day, before he left on a long journey, kori gathered hi
siempre a. nunca c. antes b. después d. bien Please select the best answer from the choices provided A B C D
how can volume be determined?
What percent of 80 is 50? Show your work.
