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Rezolvati in R ecuatiile:a) (x+1)²=(x+2)²-5; c) (t+1)²-(t-3)²=(t-4)²-(t+2)²; d) 6x(2x+3)-4(x+1)(x+1)=2(2x+1)²-11
URGENT!!! DAU COROANA!!! VA ROG!!!


Răspuns :

a)x²+2x+1=x²+4x+4-5
x²-x²+2x-4x+1+1=0
-2x=2
x=-1