Question

3. Rezolvaţi in R ecuaţiile:
a) x2=16; b) x2= -4;
c) x2 = ;
d) (x - 5)2 = 64


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Answer 1

Răspuns:

a. x=16:2 x=8

b. x=4:2 x=2

c. ???

d. x=64:2+5 x=37