1. а) 3,4*3,4*3,4*3,4=(3,4)⁴
б) а*а*а*а*а*а*а=а⁷
2. а)..........=х¹³⁻⁽⁸⁺²⁾=х¹³⁻¹⁰=х³
б) ......=n³⁺⁸⁻⁷=n⁴
в)........=(a+b)¹⁰⁻⁽⁴⁺¹⁾=(a+b)¹⁰⁻⁵=(a+b)⁵
3. 3*2⁶- 8*4³ + 5*8² = 3*2⁶ - 8*(2²)³ + 5*(2³)² = 3*2⁶ - 8*(2²)³ + 5*(2³)² =
= 3*2⁶ - 8*2⁶ + 5* 2⁶ = 2⁶ *(3-8+5)= 2⁶*0 =0
4.
11х²у⁴ 14х²у⁴- 11х²у⁴
( 7ху² - ------------ ) :9ху = ------------------------ : 9ху =
2ху² 2ху²
3х²у⁴ 1 3х²у⁴ у
= ------------ *---------- = ------------- = -----------
2ху² 9ху 18х²у³ 6