Question

simplifica octavo grado ayuda por favor si no saben no respondan es para hoy​

Answer 1

4)

$\frac{n + 1 - {n}^{3} - {n}^{2}}{{n}^{3} - n - 2 {n}^{2} + 2} =$

$\frac{(n + 1) - {n}^{2}(n + 1)}{n({n}^{2} - 1) - 2({n}^{2} - 1)} =$

$\frac{ - (n + 1)({n}^{2} - 1)}{({n}^{2} - 1)(n - 2)}$

$- \frac{n + 1}{n - 2}$

5)

$\frac{17{x}^{3}{y}^{4}{z}^{6}}{34{x}^{7}{y}^{8}{z}^{10}} =$

$\frac{17}{2 \times 17} \times {x}^{(3 - 7)} {y}^{(4 - 8)}{z}^{(6 - 10)} =$

$\frac{1}{2} \times{x}^{ - 4}{y}^{ - 4}{z}^{ - 4} =$

$\frac{1}{2{x}^{4}{y}^{4}{z}^{4}}$

6)

$\frac{12{a}^{2}{b}^{3}}{60{a}^{3}{b}^{5} {x}^{6}} =$

$\frac{2 \times 2 \times 3}{2 \times 2 \times 3 \times 5} \times{a}^{(2 - 3)}{b}^{(3 - 5)}{x}^{ - 6} =$

$\frac{1}{5} \times{a}^{- 1}{b}^{- 2} {x}^{- 6} =$

$\frac{1}{5a{b}^{2}{x}^{6}}$