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Rezolvati in R ecuatiile:
a) x√2 +1= x+√2
 b) x√7+ 3√5=3√7+x√5
c)√3( x-1)-√5( x+2)= x-3√3+2
d) (2x+3)²- (x+2)(x-2)= 3x²+8x+1