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 ( 88+ )
Otras preguntas
The Empire State Building is just over 1,450 feet tall. In anticipation of visiting this landmark on your vacation, you create a model of it using blocks. a. S
what statement best describes the status of women in ancient Egyptian society?
Find the ordered pairs for the x- and y-intercepts of the equation 2x-6y=24 and select the appropriate option below. A) The x-intercept is (2,0); the y-intercep
Using the Degree minute second method to describe an angle, one degree of angle measurement can be divided into how many minutes?
What is the amplitude, period, and phase shift of f(x) = -3 cos (4x + pi) +6?
A bat flies at an average speed of 32 kilometres an hour. At this speed, how far will it fly in 15 minutes?
In economics, the term "capital" refers to
at the business expo you've introduced yourself to Adriana a packing supplier from your city the next thing you should do is
what revelation does montag have about beatty after he kills him
Assume that a procedure yields a binomial distribution with a trial repeated n times. use the binomial probability formula to find the probability of x successe
