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 ( 85+ )
Otras preguntas
Rewrite the fraction in simplest form. 63/70
Multiply. 5/6 x 18 =
Based on the Venn diagram above that contrasts text messaging and phone calls, which choice is the BEST thesis statement?
Alfred is taking a trip. He drove 150 mi and then stopped to refuel. He will drive 60 mph to finish his trip. Let x represent the hours it takes for Alfred to c
What is the relationship between mass and weight?
draw the line structure for pentene
What is the solution to the equation? 12y + 6 = –18 A. y=-2 B. y=-1 C. y=1 D. y=2
a card is drawn from a standard deck.Which will have the greater probability,that the card is a 10 given that it is black or that the card is black given that i
because a square is a kite, it must have
To make my favorite pizza, I first roll out the dough. Then I cover it with tomato sauce, mozzarella, and green peppers. Next, I add a light layer of parmesan c
