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Ygghytyy
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Ex 2 pls repede !!!!

Ex 2 Pls Repede class=

Răspuns :

Cocirmariadenis
2)
a) 9 ·x/11+8=8⇒9x/11=0⇒x=0
b) (x+3)/2=2⇒x+3=4⇒x=4-3⇒x=1
c) √x=3/2⇒x=3²/2²⇒x=9/4⇒x=2 intregi si 1/4
d) 2(x+7)-15=2x-1
2x+14-15-2x=-1
-1=-1
2x-2x=0
e) x(x+2)=0
⇒x=0
⇒x+2=0⇒x=-2

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