Bài 3 :
`2^2 = 4`
`(-2)^4 = 2^4 = 16`
`4^2 = 16`
`(-5)^4 = 5^4 = 625`
`(-7)^3 = -343`
`(-10)^4 = 10^4 = 10000`
`-3^3 = -27`
`-6^2 = -36`
Bài 4 :
`(1/2)^2 = 1/4`
`(2/3)^3 = 8/27`
Bài 3:
\(1)2^2=4\\ 6)4^2=16\\ 11)4^2=16\\16)\left(-5\right)^4=625\\ 21)\left(-7\right)^3=-343\\ 26)\left(-10\right)^4=10000\\ 31)-3^3=-27\\ 36)-6^2=-36\)
Bài 4:
\(1)\left(\dfrac{1}{2}\right)^2=\dfrac{1^2}{2^2}=\dfrac{1}{4}\\6)\left(\dfrac{2}{3}\right) ^3=\dfrac{2^3}{2^3}=\dfrac{8}{27}\)
