hitunglah hasil diatas ( gunakan cara) tolong dibantu ya

[tex]1. \: ( {0.25})^{ - 2 + 4} = ({0.25})^{2} = 0.0625[/tex]
[tex]nomor \: 2 \\ \: {2}^{3} \times {7}^{3} \times {7}^{2} \times {2}^{ - 1} \times {7}^{ - 5} \\ = {?}^{3 + (- 1)} \times {7}^{3 + 2 + ( - 5)} \\ = {2}^{2} \times {7}^{0} \\ = 4 \times 1 \\ = 4[/tex]
[tex]nomor \: 3 \\ \frac{( {3}^{0 \times 2 \times 3} \times {5}^{2 \times 2 \times 3} )}{ {5}^{2 \times 2 \times 3} } \\ = 1[/tex]