Question

Пожалуйста срочно сделайте

Answer 1

1.

1) (4xy)/12xy=1/3

2)3xy/15xy=0.2=1/5

3)3xy(x-y)/6xy^2(x-y)=1/2y=0.5y

4)3x(x-3)/9x^2(x+2)=x-3/3x(x+2)

2.

1)8/x^3

2)9a^2/x^4

Answer 2

1.

а) $\frac{4x}{y}$*$\frac{y}{12x}$ = $\frac{1}{3}$

б) $\frac{3x}{y}$*$\frac{y}{15x}$ = $\frac{1}{5}$

в) $\frac{3xy}{x-y}$ * $\frac{x-y}{6xy^{2} }$ = $\frac{1}{2y}$

г) $\frac{3x}{x+2}$ * $\frac{x-3}{9x^{2} }$ = $\frac{x-3}{3x(x+2)}$ = $\frac{x-3}{3x^{2} + 6x}$

2.

а)( $\frac{2}{x})^{3}$ = $\frac{2^{3} }{x^{3} }$ = $\frac{8}{x^{3} }$

б) ($\frac{3a}{x^{2} })^{2}$ = $\frac{(3a)^{2} }{(x^{2})^{2} }$ = $\frac{9a^{2} }{x^{4} }$