Question

[An Chu]

😫😫😫

Answer 1

[qlamm]

cj e kêu k dc giúp e kìa =))))

Answer 2

[Mr_Johseph_PRO]

\(b,2^x=51+13=64\Rightarrow2^{x^{ }}=2^6\Rightarrow x=6\)

\(c,\left(3^{2x-1}\right)=45-18\\ \left(3^{2x-1}\right)=27\\ 3^{2x-1}=3^3\\ 2x-1=3\\ 2x=4\\ x=4:2\\ x=2\)