Question

10.2^y-1+4-2^y = 9.2⁵

Answer 1

  (102/10)*y-1+4-2*y-((925/100))=0 

((((\(\frac{102}{10}\)•y)-1)+4)-2y)-\(\frac{37}{4}\) = 0 ((((\(\frac{51}{5}\) • y) - 1) + 4) - 2y) - \(\frac{37}{4}\) = 0

\(\left(\left(\frac{51y-5}{5}+4\right)-2y\right)-\frac{37}{4}=0\)

\(\left(\frac{51y+15}{5}-2y\right)-\frac{37}{4}=0\)

 51y + 15  =   3 • (17y + 5) 

(41y + 15) 37 —————————— - —— = 0 5 4 164y - 125 —————————— = 0 20

 164y-125 = 0 

164y = 125 
  y = 125/164 

học tốt

Answer 2

ai ngắm gái ko

Answer 3

10.2^y-1+4-2^y=9.32=288

=>5.2.2^y-1-2^y=288-4=284

=>5.2^y-2^y=284

=>2^y.(5-1)=2^y.4=284

=>2^y=284:4=71

..............................................................