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 ( 65+ )
Otras preguntas
Write 25 x 10^6 in standard form
How were religious and political loyalties tied together during the time of the tudors?
What is the value of the number 2.25 how can this mumber be written as a fraction or mixed number
What are the two tiny structures located in the cytoplasm near the nuclear envelope at the beginning of prophase?
7.5 = x + 1.25 please answer
In a paragraph, explain how Ortiz Cofer and Levins Morales express cultural identity through poetry. Use specific examples from each poem in your answer. ANSWER
Which type of electromagnetic radiation is commonly used both in kitchen appliances and in radar guns? (2 points) Gamma rays rays Radio waves Microwaves
Which values of P and Qresult in an equation with no solutions? -60x+32=Qx+P
what is the main verb
Please Help I DOn't Understand This Lesson
