Question

Rezolvati ecuatiile:

$log_{x+1} ( x^{2} -3x+1) = 1$
$log_{3} ( x^{2} -14x+22) = 2$

Answer 1

x>-1; x≠0
x²-3x+1=x+1
x²-4x=0
x(x-4)=0
x=0∉conditiilor de existenta
x=4
S={4}