( x + 34 ) . 215 = 212 . 64
( x + 81 ) . 215 = 212 . ( 23 )4
( x + 81) . 215 = 212 . 212
( x + 81 ) . 215 = 224
x + 81 = 224 : 215 = 29 = 512
x = 512 - 81 = 431
x+34=24.34.214:215
x+34=34.23
x+34=648
x=648-34=567
\(\left(x+3^4\right)\cdot2^{15}=2^{12}\cdot6^4\)
\(\left(x+3^4\right)\cdot2^{15}=2^{12}\cdot\left(2\cdot3\right)^4\)
\(\left(x+3^4\right)\cdot2^{15}=2^{12}\cdot2^4\cdot3^4\)
\(x+3^4=\left(2^{12}\cdot2^4\right)\div2^{15}\cdot3^4\)
\(x+3^4=2^{16}\div2^{15}\cdot3^4\)
\(x+3^4=2\cdot3^4\)
\(\Rightarrow x=3^4=81\)
Vậy x = 81
( x + 34 ) x 215 = 2 12 x 64
cái nào ghi đậm là x
vậy x là cái ghi đậm
