Question

Помогите пж по алгебре

Answer 1

${x}^{5} \times {x}^{ - 8} = {x}^{ - 3} \\ {x}^{ - 3} \div {x}^{ - 2} = {x}^{ - 1} \\ { \frac{1}{3} }^{ - 1} = 3$
$\frac{ \sqrt{12} }{ \sqrt{50} \times \sqrt{6} } = \frac{2 \sqrt{3} }{5 \sqrt{2} \times \sqrt{2 } \times \sqrt{3} } = \frac{2}{10} = \frac{1}{5} = 0.2$
$\frac{x(x - 2)}{(2 - x)(2 + x)} = - \frac{x}{2 + x}$