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rezolvati in R ecuatiile a) x patrat =4 b) x patrat -9=0 c) 4x patrat =9 d) 25=x patrat e) 16xpatrat -9=0 f) 4x patrat =0

Răspuns :

a) x=√4→x=2
b)[tex] x^{2} [/tex] =9→x=√9→x=3
c)x=3/2
d)x=5
e)16[tex] x^{2} [/tex] =9→x=3/4
f)x=0