DrWhoTardis
DrWhoTardis
02-06-2015
Mathematics
contestada
solve for x: 2xsquared+4x-16=0
Respuesta :
Panoyin
Panoyin
02-06-2015
2x² + 4x - 16 = 0
2(x²) + 2(2x) - 2(8) = 0
2(x² + 2x - 8)
=
0
2 2
x² + 2x - 8 = 0
x =
-(2) ± √((2)² - 4(1)(-8))
2(1)
x =
-2 ± √(4 + 32)
2
x =
-2 ± √(36)
2
x =
-2 ± 6
2
x = -1 ± 3
x = -1 + 3 U x = -1 - 3
x = 2 x = -4
Answer Link
VER TODAS LAS RESPUESTAS ( 48+ )
Otras preguntas
If a pizza is sliced into 6 even slices, what is the angle of rotational symmetry?
The environment is considered a non-controllable risk factor. True False
describe at least two ways that carbon can get from land plant to the atmosphere ?
A jar contains 5 pink and 8 navy marbles. A marble is drawn at random. What is the theoretical probability of NOT drawing pink?
what is £747 by 2:7 in a ratio
On santiago's last night alive, what did he spend some time calculating and why is that a haunting memory for those who know considering what it reminded him of
How did Ethiopia differ from most other African countries in its experience with European imperialism
Which nation emerged as the main force in the western world? *Holocaust*
Art mows 1/8 acre in 1/4 hour. hOw many acres does art mow per hour
What is the minimum number of daily kcals necessary to ensure nutritional adequacy in an eating plan for reducing weight?
