Catalin12ask
a fost răspuns

Rezolvati in multimea nr. rationale pozitive ecuatiile:

a) (5+2x)4=24

b)  6(1+4x)=12

Răspuns :

a) (5+2x)4=24
5*4+2x*4=24
20+8x=24
8x=24-20
8x=4
x=4/8
x=1/2

b) 6(1+4x)=12
6*1+4x*6=12
6+24x=12
24x=12-6
24x=6
x=6/24
x=1/4
[tex]20 +8x = 24
8x = 4 x= \frac{4}{8}
x= \frac{1}{2} ; \frac{1}{2} apartine multi nr rationale
b) 6+24x=12
 24x=6
 x= \frac{6}{24}
 x= \frac{1}{4} ; \frac{1}{4} apartine multii nr rationale[/tex]

Ask Alte intrebari