230+[2 mũ 4 +(x-5)]=315.2018 mũ 0 707:[(2 mũ x – )+74]=4 mũ 2 – 3 mũ 2 [(6x-12):3].32=64 (x:7+15).23=391 05/07/2021 Bởi aikhanh 230+[2 mũ 4 +(x-5)]=315.2018 mũ 0 707:[(2 mũ x – )+74]=4 mũ 2 – 3 mũ 2 [(6x-12):3].32=64 (x:7+15).23=391
230+[$2^{4}$ +(x-5)]=315.$2018^{0}$ 230+[$2^{4}$ +(x-5)]=315.1 $2^{4}$ +(x-5)=315-230 16 +(x-5)=85 x-5=85-16 x-5=69 x=69+5 x=74 (x:7+15).23=391 x:7+15=391:23 x:7+15=17 x:7=17-15 x:7=2 x=2.7 x=14 [(6x-12):3].32=64 (6x-12):3=64:32 (6x-12):3=2 6x-12=2.3 6x-12=6 6.x=6+12 6.x=18 x=18:6 x=3 707:[($2^{x}$ )+74]=4² – 3² 707:[($2^{x}$ )+74]=1 ($2^{x}$ )+74=1.707 ($2^{x}$ )+74=707 $2^{x}$=707-74 $2^{x}$=633 Sai Bình luận
230+[$2^{4}$ +(x-5)]=315.$2018^{0}$
230+[$2^{4}$ +(x-5)]=315.1
$2^{4}$ +(x-5)=315-230
16 +(x-5)=85
x-5=85-16
x-5=69
x=69+5
x=74
(x:7+15).23=391
x:7+15=391:23
x:7+15=17
x:7=17-15
x:7=2
x=2.7
x=14
[(6x-12):3].32=64
(6x-12):3=64:32
(6x-12):3=2
6x-12=2.3
6x-12=6
6.x=6+12
6.x=18
x=18:6
x=3
707:[($2^{x}$ )+74]=4² – 3²
707:[($2^{x}$ )+74]=1
($2^{x}$ )+74=1.707
($2^{x}$ )+74=707
$2^{x}$=707-74
$2^{x}$=633 Sai