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 ( 91+ )
Otras preguntas
factor the equation (4x^2+ 12x + 9)
What is the effect of envisioning “aged years” as needing a staff in these lines from the passage? By that time will my aged years perhaps a staff require:
h e l p ;;;((( Jared made some muffins. He wrote this equation to show the number of muffins in one batch. m = 8 Jared made 7 batches of muffins. Which equatio
A washer and a dryer cost $816 combined. The washer costs $66 more than the dryer. What is the cost of the dryer?
Thoreau’s actions in "Civil Disobedience" and the 1955 bus boycott are similar because both Thoreau and the boycotters were
Whom does Cecily wish would visit? A. Gwendolen B. Miss Prism C. Ernest
how did early government support economic growth in River valley civilizations
What is a living will?
25 POINTS PLEASE HELP YOU CAN CHOOSE MORE THAN ONE Select all the correct answers. A survey of 30 students each from three different high schools was conducted
The emphasis changes a meaning of a word by making the word important or kind of dramatic ( a little bit) in the passage.
