Question

СРОЧНО!!! Я ВІДДАМ 70 БАЛІВ

Answer 1

$\displaystyle\bf\\1)\\\\\Big(-3a^{5}bc^{4}\Big)^{2}= 9a^{10} b^{2} c^{8} \\\\\\\Big(-3a^{5}bc^{4}\Big)^{3}= -27a^{15} b^{3} c^{12}\\\\\\2)\\\\\Big(2\frac{1}{4} x^{9} \Big)^{2} =\Big(\frac{9}{4} x^{9} \Big)^{2}=\frac{81}{16} x^{18} =5\frac{1}{16} x^{18} \\\\\\\Big(2\frac{1}{4} x^{9} \Big)^{3}=\Big(\frac{9}{4} x^{9} \Big)^{3}=\frac{729}{64} x^{27} =11\frac{25}{64} x^{27}$