LukeNuno
LukeNuno
03-12-2014
Mathematics
contestada
Solve for x:
x2 + 8x = -1
Respuesta :
konrad509
konrad509
03-12-2014
[tex]x^2+8x=-1\\ x^2+8x+16-16=-1\\ (x+4)^2=15\\ x+4=\sqrt{15} \vee x+4=-\sqrt{15}\\ x=-4+\sqrt{15} \vee x=-4-\sqrt{15}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 39+ )
Otras preguntas
Nanotechnology and microtechnology devices are both very tiny. However, one property of nanotechnology distinguishes it from microtechnology. What is this uniqu
tudents are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. There are 15 questions on the test, and s
Geometry math question no Guessing and Please show work thank you
I need help on this question
How many grams of mgo are produced when 40.0 grams of o2 react completely with mg? 2 mg (s) + o2 (g) → 2 mgo (s)?
For each equation, determine whether it represents a direct variation, an inverse variation, or neither. Find the constant of variation when one exists and wri
Mabel is comparing the prices of two car rental companies. Company A charges $35 per day and an additional $15 as service charges. Company B charges $42 per day
what process occurs within stars that makes them different from other objects in the universe
What does -5/2 < −1 indicate about the positions of -5/2 and −1 on the number line? (1 point) Select one: a. -5/2 is located on the left of 0 and −1 is lo
Geometry math question no Guessing and Please show work thank you
