Question

алгебра помогите даю много баллов

Answer 1

....................

Answer 2

надо выучить свойства степеней.

$\displaystyle\frac{x {}^{3} \cdot(x {}^{5} ) {}^{7} \div x {}^{11} }{x {}^{23} } = \frac{x {}^{3} \cdot \: x {}^{5 \cdot7} \div x {}^{11} }{x {}^{23} } = \frac{x {}^{3} \cdot \: x {}^{35} \div x {}^{11} }{x {}^{23} } = \frac{x {}^{3 + 35} \div x {}^{11} }{x {}^{23} } = \frac{x {}^{38} \div x {}^{11} }{x {}^{23} } = \frac{x {}^{38 - 11} }{x {}^{23} } = \frac{x {}^{27} }{x {}^{23} } = x {}^{27 - 23} = \bf \: x {}^{4} .$