adventist1 adventist1
  • 13-12-2014
  • Mathematics
contestada

How do you solve this by completing the square? 6x^2-10x+4=0 I got 3x-5/2=+or-√17/2. I'm not sure.

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apologiabiology
apologiabiology apologiabiology
  • 13-12-2014
well you could factor out the 2 in the equation

6=3*2
10=5*2
4=2*2
so
6x^2-10x+4=2(3x^2-5x+2) so
factor 3x^2-5x+2 and get
(x-1)(3x-2)=0
so xy=0 then x and/or y=0 so
x-1=0
x=1

3x-2=0
3x=2
x=2/3

x=1 or 2/3
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