chey48
chey48
15-01-2017
Mathematics
contestada
The sum of the roots of 2x squared + 8x -3=0 is?
Respuesta :
Newtion
Newtion
15-01-2017
According to Vieta's formula, if [tex]x_1,x_2[/tex] are solutions of quadratic equation [tex]ax^2+bx+c=0[/tex], then:
[tex]\displaystyle x_1+x_2=- \frac{b}{a} [/tex]
In our case:
[tex]\displaystyle x_1+x_2=- \frac{8}{2} =-4[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 99+ )
Otras preguntas
Solve the equation + explanations
Acepromazine is avaliable in a 100mL vial, that contains 10mg/mL, if 1mL of acepromazine is diluted 1:100, how many mg are in a 5mL of the diluted solution?
What is the length of BC? If your answer is not an integer, leave it in simplest radical form?
Describe the role that Neo-Confucianism played in the Song dynasty.
The height of the tide over time is shown on the graph. Which of the following equations can be used to reasonably model the data represented in the graph? Sele
Compare and contrast Russia before and after the Revolution.
Which of the following could a typical third grader handle? 10–15 pushups 5–10 pull-ups 30–40 sit-ups a mile of running
Anyone happen to know this? Thanks.
What is the denotative meaning of the word breeze
The base of an energy pyramid is always composed of ______________
