Rezolvati in |R ecuatiile :
a) (x-2)(x+3)-14=x(x-3)-12
b) 3x(x+2)-13=x(3x-1)-34
c) 2x(2x-5)=(2x+3)(2x-3)
d) (x-3) la a doua +10=(x-1)(x+1)-10