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 ( 76+ )
Otras preguntas
Applying Ratio and Rate Reasoning.No links, please or I will have to report you.Just 1-6
what is 3x2.7???????
How many grams of octane (C8H18) must be burned to produce 300.0g of CO2? 2 C8H18 + 25 O2 → 16 CO2 + 18 H2O
[tex]\sqrt 18- \sqrt 2[/tex]
Emma is taking a multiple choice test. Her grade is given by the equation y= 125 – 5x, where y represents her final score and x represents the number of questio
verify and name the property - 5 by 9 +2 by 13=2 by 13+-5 by 9
Match the amendments with their long term impact Question 7 options: you can register to vote once you turn 18. freed hundreds of thousands of enslaved African
please help me it's due at 6pm and i promise the give brainlist
answer this if you want 70 pts who ever answers first I will brainliest and give 5 stars with a thank you and you will earn 70 pts you may go NOW
If the graph of a function increases as x increases and decreases as x decreases, the degree must be _____
