(x-1)^2-3x+4=0

find value of x

 

Asked by mirinilton | 7th Mar, 2019, 07:44: PM

Expert Answer:

begin mathsize 12px style open parentheses space x space minus space 1 close parentheses squared space minus 3 x space plus 4 space equals space 0
x squared space minus 2 x space plus 1 space minus 3 x space plus 4 space equals space 0
x squared space minus 5 x space plus space 5 space equals 0

x space equals space fraction numerator 5 plus-or-minus square root of 25 minus 20 end root over denominator 2 end fraction space equals space fraction numerator 5 plus-or-minus square root of 5 over denominator 2 end fraction end style

Answered by Thiyagarajan K | 7th Mar, 2019, 11:27: PM

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