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Solve the following equations where x in...

Solve the following equations where `x in R`
a) `(x-1)|x^(2)-4x+3|+2x^(2)+3x-5=0`
b) `|x^(2)+4x+3|+2x+=0`
c) `|x+3|(x+1)+|2x+5|=0`

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a) 1, b) `-4, sqrt(3)-1, c) -4,-2 , -sqrt(3)-1`
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