chào anh nhé em mới học lớp 5

       32^n x 16^n=1024

<=> (32 x 16)^n=1024

<=>512^n=1024

<=>(2^9)^n=2^10

<=>2^9n=2^10

<=>9n=10

<=>n=10/9

( nếu n là số nguyên thì thêm : Mà n thuộc Z =>ko có n thỏa mãn )

sai đề

Sai cái đầu mày 

(1/32)ⁿ.16ⁿ=1024^-1

=> (1/32.16)ⁿ=1/1024

=> (1/2)ⁿ=1/1024

=> (1/2)ⁿ=(1/2)¹⁰

=> n=10

\(\left(\frac{1}{32}\right)^n.16^n=1024^{-1}\)

\(\left(\frac{1}{32}.16\right)^n=\frac{1}{1024}\)

\(\left(\frac{1}{2}\right)^n=\frac{1}{1024}\)

\(\frac{1^n}{2^n}=\frac{1}{1024}\)

<=> 1ⁿ = 1 => n thuộc N

<=> 2ⁿ = 1024

=> 2ⁿ = 1024 = 2¹⁰ ( 2ⁿ = 2¹⁰ )

<=> n = 10

\(32^n+16^n=1024\)

\(\Leftrightarrow\left(2^5\right)^n+\left(2^4\right)^n=2^{10}\)

\(\Leftrightarrow2^{5n}.2^{4n}=2^{10}\)

\(\Leftrightarrow2^{4n+5n}=2^{10}\)

\(\Leftrightarrow9n=10\Leftrightarrow n=\frac{10}{9}\)

(\(\dfrac{1}{32}\))ⁿ . 16ⁿ = 1024^-1

<=> (\(\dfrac{1}{32}\) . 16)ⁿ = \(\dfrac{1}{1024}\)

<=> (\(\dfrac{1}{2}\))ⁿ = \(\dfrac{1}{1024}\)

<=> n=10

Vậy n=10

a, 5ⁿ+5ⁿ⁺²=650

=>5ⁿ+5ⁿ.5²=650

=>5ⁿ(1+25)=650

=>5ⁿ.26=650

=>5ⁿ=25

=>5ⁿ=5²

=>n=2

 Vậy n=2