Samhain
Samhain
01-02-2015
Mathematics
contestada
solve the following quadratic equation (x+3)2+25=0
Respuesta :
ValyRemus
ValyRemus
01-02-2015
[tex]2\cdot(x+3)+25=0[/tex] ⇒ [tex]2x+2\cdot3=0-25[/tex]
[tex]2x+6=-25[/tex] ⇒ [tex]2x=-25-6[/tex] ⇒ [tex]2x=-31[/tex]
[tex]x= \frac{-31}{2} [/tex] ⇒ [tex]\boxed {x=-15,5}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 46+ )
Otras preguntas
What force is needed to accelerate a 1,000-kilogram car from a stop to 5 m/s/s?
What do you think is the most fascinating aspect of the internet?
what happens when you add heat to an object and when you cool an object
What is the main idea of Franklin’s Albany Plan of Union? Select one: a. Albany and Boston should join in a trade agreement. b. All the English colonies in Amer
Which best describes the underlined words in the sentence? On the next cloudless night, go outdoors and look at the sky. A. compound verb B. simple predicate
Write the fowling decimal as a fraction or as a mixed number in simplest form 3.56
How long will it take to drive 200 miles if the driver's average speed is 55 mph?
Melitta found out that if she walks really fast her moring exercise, she can cover 2 1/2 miles in 3/4 of an hour. how fast is she walking in miles per hour?
Which ratio does not belong with the other three, explain your reasoning. 4/10, 2/5, 3/5, 6/15
A monument is 75 meters high. At an information booth, an observer notices the angle of elevation to the top of the monument is 36 degrees. How far is the obser
