LizChwieroth156 LizChwieroth156
  • 22-06-2015
  • Mathematics
contestada

x^2 - 6x + 5 = 0 Factor and check

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AyaZ
AyaZ AyaZ
  • 22-06-2015
[tex]x^2 - 6x + 5 = 0 \\ (x-1)(x-5)=0 \\ x_{1} =1 \\ x_{2} =5[/tex]
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apologiabiology
apologiabiology apologiabiology
  • 22-06-2015
we need to find 2 numbers that multiply to get 5 and add to get -6
they must both be negative so
factor 5
5=1 times 5 or -1 times -5
-5+-1=-6 check

factor
(x-1)(x-5)=0


if we factor and get zy=0 then assume z and/or y=0 so
x-1=0
x-5=0


x-1=0
add 1
x=1



x-5=0
add 5
x=5


x=1 or 5
Answer Link

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