radbtsoy5dfs radbtsoy5dfs
  • 24-10-2017
  • Mathematics
contestada

solve this quadratic equation -x^2 + 2x - 2 = 0

Respuesta :

wikk
wikk wikk
  • 24-10-2017
-x² + 2x - 2 = 0
a = -1
b = 2
c = -2

You can solve this by using the quadratic formula.
x = (-b +/-
√b² - 4ac)/(2a)
x = (-2 +/-√2² - 4(-1)(-2))/(2(-1)
x = (-2 +/-√4 - 8)/-2
x = (-2 +/-√-4)/-2
x = (-2 +/-2i)/-2
x = 1 +/- i

x = 1 + i
x = 1 - i
Answer Link

Otras preguntas

Which of the following is the best example of peer pressure using a reasoning tactic?A.  "Have a cigarette. Everyone in this group smokes."B. "C'mon and take a
Using the terms DNA, trait, code, pattern, gene, describe why each organism is unique
the completion times for three runner in a 100-yard dash are 9.75 seconds,9.7seconds,and 9.675 seconds. which is the winning time?
how do you find the ratio of 11 days to 14 days
what does this proverb meanbetter to be a free bird than a captive king
why is it incorrect to say the insulation 'keeps out the cold'
How do you do problems like x^2+x-20 less then or equal to 0 I am clueless on how to do this. Please help me. >_<
what's 0.003 is 1/10 of what?
a rectangular field has a perimeter of 500m and an area of 14400m2.  Find the lengths of the sides
a ratio is a rate sometimes, always, or never true ?