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va rogggg, urgentttttt!!! dau coroana la cel mai bun raspuns!!!​

Va Rogggg Urgentttttt Dau Coroana La Cel Mai Bun Raspuns class=

Răspuns :

h) [(²x+1/2]/0,8(3)=(²2+1/2)/3

0,8(3)=(83-8)/90=75/90=25/30=5/6

[(x+1/2]/(5/6)=(5/2)/3

(x+1/2)/(5/6)=5/6

x+1/2=(5/6)²

x=25/36-¹⁸1/2

x=(25-18)/36=7/36

x=7/36

i) 16/(2x+1)=48/27

(2x+1)×48=16×27

2x+1=432:48

2x+1=9

2x=8

x=4

j) 24/8=15/(2x+3)

2x+3=15×8/24

2x+3=5

2x=5-3

x=2/2=1

x=1

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