a fost răspuns

a)solutia ecuatiei 2x+1=3 in N este.....
b) solutia ecuatiei 4x-6=2(x-3) in Z este...\
c) solutia ecuatiei √18x + 3/√2 =0 in Q este....

Răspuns :

XAndiask
a) 2x+1=3 => 2x=3-1 => 2x=2 => x=1 ,, 1 e nr natural
b)4x-6=2(x-3) => 4x-6=2x-6 => 4x=2x => x=0... 0 e nr intreg (apratine lui Z)
c)√18x+3÷√2=0
√18=3√2
3√2x+3÷√2=0 (amplificam prima cu √2
(6x+3)÷√2=0
6x+3=0
x=-3/6
Ionelai59ask
a)2x=2
  x=1
b)4x-6=2x-6
  4x-2x=-6+6
  2x=0
  x=0
c)3√2x+3√2/2=0
  6√2x/2+3√2/2=0
  9√2x/2=0
  9√2x=0
  x=0

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