tamic198223 tamic198223

04-04-2015
Mathematics

contestada

What is x^2+8x-5 in vertex form? Please explain.

Respuesta :

konrad509 konrad509

04-04-2015

[tex]x^2+8x-5=\\ x^2+2\cdot4\cdot x-5=\\ x^2+2\cdot4\cdot x+4^2-4^2-5=\\ (x+4)^2-16-5=\\ (x+4)^2-21 [/tex]

Answer Link

mathgirl22 mathgirl22

04-04-2015

[tex]x^2+8x-5=\\ x^2-8x+16-21=\\ (x-4)^2-21[/tex]

Answer Link

Otras preguntas

A function, f(x), represents the distance, in miles, that sarah drives each hour, x. Select the appropriate domain for this situation. A. The set of all positiv

Now imagine that you are an Arab merchant who has traveled to either India or West Africa. You may choose the region that you are visiting for this task. Think

Complete the chemical formula: H 3 O + + OH -

El piloto no permite que los pasajeros _____ en los pasillos. Question options: estuvieron están (wrong) estén estaban

Please solve 9. #9 please show a picture and do the steps

How plants give off oxygen?

—¿Le doy la comida al bebé? —No, no le _____ la comida todavía. Question options: doy des da das (wrong)

Is Greenland on the Pangea map?

Explain the reasons behind James Madison’s Bill of Rights.

an intrusion of magma along a bedsing plane is called what