Question

Помогите пожалуйста решить ​

Answer 1

Ответ:

$1)(a {}^{15} \times c {}^{2} ) \div (a \times c {}^{3} ) {}^{2} = \frac{a {}^{15} c {}^{2} }{(ac {}^{3}) {}^{2} } = \frac{a {}^{15} c {}^{2} }{a {}^{2}c {}^{6} } = \frac{a {}^{13} }{c {}^{4} }$

$2)(a {}^{10} \times a {}^{2} ) {}^{4} \times (a {}^{10} \times a {}^{3} ) {}^{2} = (a {}^{12} ) {}^{4} \times (a {}^{13} ) {}^{2} = a {}^{48} \times a {}^{26} = a {}^{74}$

$3)(x {}^{15} \div y {}^{4} ) {}^{3} \times (x {}^{10} \div y {}^{3} ) {}^{2} = ( \frac{x {}^{15} }{y {}^{4} } ) {}^{3} \times ( \frac{x {}^{10} }{y {}^{3} } ) {}^{2} = \frac{x {}^{45} }{y {}^{12} } \times \frac{x {}^{20} }{y {}^{6} } = \frac{x {}^{65} }{y {}^{18} }$