Question

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

Answer 1

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