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 ( 31+ )
Otras preguntas
Help me with number 6 please
What is it called when you believe in god but not religion?
Read the following excerpt from a speech. Then answer the question that follows. In Turkey, burping after a meal is a sign of appreciation. Among the Inuit peop
adding drops of food coloring to a beaker of water more organized system?
In 1854 United States seaman Commodore Matthew C. Perry negotiated the Convention of Kanagawa in Japan. What was the purpose of this treaty?
HALP Anderson is paid $985.26 biweekly. What is his average monthly net, or take-home, pay?
Which material is a liquid at room temperature (25°C)? (5 point) copper nitrogen water table salt
A major reason the industrial revolution begin in England was the England possessed
Manipulating syntax allows authors to
Which of these is NOT a way to think about finding -16 -9 ? A. -16 + -9 B. The negative distance between -16 and 9 on the number line C. Changing the sing a