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C18 si C19
Vă rog urgent!!!!


C18 Si C19 Vă Rog Urgent class=

Răspuns :

C19 : |2-√5| + |3-√5|
↓ ↓ ↓ ↓
√4. √5 √9 √5
|2-√5| = -2+√5 = √5-2
|3-√5| = 3-√5
√5-2+3-√5 =1

C18: |1-2x|=|x+4|
1-2x =x+4
1-4= x+2x
-3=3x => x=-1