Question

AJUTOOOOORR am nevoie azi

Answer 1

8 intregi 8/15=(8x15+8)/15=128/15
2,1(3)=(213-21)/90=192/90=simplif cu 2=96/45=simplif.cu 3=32/15
avem
{128/15{[1/5+x(4/3-6/5)]·5/3}}:32/15=16⁸/8¹⁰
{128/15{[1/5+x(4·5-6·3)/5)]·5/3}}:32/15=(2⁴)⁸:(2³)¹⁰
{128/15{[1/5+x·2/5)]·5/3}}·15/32=2³²:2³⁰
{128/15{[1/5+2x/5)]·5/3}}·15/32=2³²⁻³⁰
{128/15{(1+2x)/5·5/3}}·15/32=2²
{128/15·(1+2x)/3}·15/32=4    simplif cu 15
128/32·(1+2x)/3=4
[128(1+2x)]/96=4
128(1+2x)=4·96
1+2x=384/128
1+2x=3
2x=3-1
2x=2
x=2/2
x=1