Question

Выражение: a) x^13/x^8*x^2; b) n^3*n^8/n^7; c) (a+b)^10/(a+b)^4*(a+b)

Answer 1

А)х^13:х^10=х^3
б)n^3*n^1=n^4
(a+b)^10:(a+b)^5=(a+b)^5

Answer 2

$\frac{ {x}^{13} }{ {x}^{8} \times {x}^{2} } = \frac{ {x}^{13} }{ {x}^{8 + 2} } = {x}^{13 - 10} = {x}^{3}$
$\frac{ {n}^{3} \times {n}^{8} }{ {n}^{7} } = {n}^{3} \times n = {n}^{4}$
$\frac{ {(a + b)}^{10} }{ {(a + b)}^{4} \times (a + b) } = {(a + b)}^{10 - 5} = {(a + b)}^{5}$