a,2¹⁰⁰⁰=(2⁴)²⁵⁰ =16²⁵⁰=...............6

b,4¹⁶¹=4¹⁶⁰.4=(4²)⁸⁰.4=16⁸⁰.4=..........6.4=.............4

c,(19⁸)¹⁹⁴⁵=[(19²)⁴]¹⁹⁴⁵=(...1⁴)¹⁹⁴⁵=.....1¹⁹⁴⁵=................1

d,(3²)²⁰¹⁰=(3⁴)¹⁰⁰⁵=81¹⁰⁰⁵=....................1

Nối ô trống với số thích hợp:

a) \(\left(2x-3y\right)^2=4x^2-12xy+9y^2\)

b) \(\left(5p-q\right)^2=25p^2-10pq+q^2\)

c) \(\left(-a-b\right)^2=-a^2-2ab-b^2\)

d) \(\left(1+3s\right)^2=1+6s+9s^2\)

e) \(\left(a^2b+2b\right)^2=a^4b^2+4a^2b^2+4b^2\)

f) \(\left(3u-v\right)^3=27u^3-27u^2v+9uv^2-v^3\)

75 ha = 0,75 km²