Упростите выражение:1)5^2n+3*5^2n-1_____________     =      25^2n+12) 2^m*3^n-1-2^m-1*3^n    __________________   =                2^m*3^n

[latex]2) \frac{2^{m}3^{n-1}-2^{m-1}3^{n}}{2^{m}3^{n}}= \frac{2^{m} \frac{3^{n}}{3} - \frac{2^{m}}{2} 3^{n}}{2^{m}3^{n}}= \frac{2*2^{m}3^{n}-3*2^{m}3{n}}{6*2^{m}3^{n}}=- \frac{2^{m}3^{n}}{6*2^{m}3^{n}}=- \frac{1}{6} [/latex] [latex]1) \frac{5^{2n+3}5^{2n-1}}{25^{2n-1}}= \frac{5^{2n+3+2n-1}}{(5^{2})^{2n-1}}= \frac{5^{4n+2}}{5^{4n-2}}=5^{4n+2-4n+2}=5^{4}=625 [/latex]