Question

помогите упростить выражение

Answer 1

9.1. 1) Используя свойства степеней,
$a {}^{10} \div a {}^{9} \times a {}^{3} = a {}^{4}$
3)
$b {}^{40 - 22 - 8} = b {}^{10}$
9.2. 1)
$\frac{(x {}^{2}y) {}^{6} }{(x {}^{5}y {}^{3}) {}^{2} } \times xy = x {}^{2} \times xy = {x}^{3} y$
2)
$a { }^{21} ( {a}^{4}) {}^{3} \div ( {a}^{3} ) {}^{10} = {a}^{21} \times {a}^{12} \div {a}^{30} = {a}^{3}$