\(24^{30}:144^{n+1}=8^{10}\)
\(144^{n+1}=\dfrac{24^{30}}{8^{10}}\)
\(144^{n+1}=\dfrac{24^{30}}{\left(2^3\right)^{10}}\)
\(144^{n+1}=\dfrac{24^{30}}{2^{30}}\)
\(144^{n+1}=12^{30}\)
\(144^{n+1}=12^{\left(2\cdot15\right)}\)
\(144^{n+1}=144^{15}\)
`=>n+1=15`
`=>n=14`