SOLUTION: Log (2x^2 - 2) = Log (x^2 + 2x -3) quisera resolver este problema

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Question 1179399: Log (2x^2 - 2) = Log (x^2 + 2x -3)
quisera resolver este problema
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

log+%28%282x%5E2+-+2%29%29+=+log+%28%28x%5E2+%2B+2x+-3%29%29...........aplicar regras de logaritmo ,se logaritmo é o mesmo então temos
2x%5E2+-+2+=+x%5E2+%2B+2x+-3
2x%5E2+-+2+-+x%5E2+-2x%2B3=0
x%5E2++-2x%2B1=0
%28x++-1%29%5E2=0
solução
%28x++-1%29=0 =>x=1
verifique se a solução funciona
log+%282%2A1%5E2+-+2%29+=+log+%281%5E2+%2B+2%2A1+-3%29
log+%282+-+2%29+=+log+%283+-3%29
log+%280%29+=+log+%280%29 => Nenhuma solução para x em R

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