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 ( 38+ )
Otras preguntas
Jacob has six times as many baseball cards as his sister Rebecca. Together they have a total of 861 cards. Write an equation and solve to find how many cards th
The length of a spring is a linear function of the weight of the object compressing it. For a particular spring, the length decreases by 1.5 inches for every 3
The Best Theme Park sold 130 tickets in an hour and made $5,300 from ticket sales. An adult ticket sells for $50.00. A child ticket sells for $20.00. Let x = t
Event A is rolling a five on a six sided die and event B is rolling an odd number on the same die. Are the events dependent or independent, why?
What is the theoretical yield of ammonia, in kilograms, that we can synthesize from 5.22 kg of h2 and 31.5 kg of n2?
A plane left Atlanta at 11:30 a.m. and flew to an airport near Boston. The plane was due at Boston at 3:15 p.m. The plane arrived 25 minutes late. The time of t
What was the Enlightenment?
5x2−320 factored completely?
The _____ reflects the total market value of over 98% to 99% of all publicly traded stock in the u.s.
The main difference between heat and temperature is the temperature is Solely dependent on the
