Hayden01
Hayden01
04-05-2016
Mathematics
contestada
I need some help on this.
Respuesta :
BreStrum
BreStrum
04-05-2016
So you are going to use the quadratic formula-
-b +/-
√b^2 -4ac/2a
So the problem is x^2 - 5x + 2 = 0
a=1
b=5
c=2
-(-5) +/-
√-5²-4(1)(2)/2(1)
= 5 +/- √25 - 8/2
= 5 +/- √17/2
Your answer is D.
Understand?
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