SOLUTION: I do not really understand how to do this... sqrt(3x+17) - 5 = x

SOLUTION: I do not really understand how to do this... sqrt(3x+17) - 5 = x

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Question 570598: I do not really understand how to do this...
sqrt(3x+17) - 5 = x

Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!

square both side of the equation

x^2+7x+8=0
Find the roots of the equation by quadratic formula

a= 1 b= 7 c= 8

b^2-4ac= 49 - -32
b^2-4ac= 17
= 4.12

x1=( -7 + 4.12 )/ 2
x1= -1.44

x2=( -7 -4.12 ) / 2
x2= -5.56

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