Question

x^2.x^4.x^6.x^8.x^10/x.x^3.x^5.x^7.x^9=243

 

Answer 1

=x^2.x^8.x^4.x^6.x^10/x^1.x^9.x^3.x^7.x^3=3^5

=x^10.x^10.x^10 / x^10.x^10.x^5=3^5

=x^10/x^5=3^5

=x^5=3^5

x=3

Answer 2

\(x^2.x^4.x^6.x^8.x^{10}:\left(x.x^3.x^5.x^7.x^9\right)=243\)

\(x^{2+4+6+8+10}:x^{1+3+5+7+9}=243\)

\(x^{30}:x^{25}=243\)

\(x^{30-25}=243\)

\(x^5=243\)

\(x^5=3^5\)

\(\Rightarrow x=3\)

Vậy \(x=3\)