Question

помогите 50 баловв дам срочно​

Answer 1

Ответ:

$a)\frac{14x-9}{17x}+\frac{3x-25}{17x}=\frac{14x-9+3x-25}{17x}=\frac{14x+3x-9-25}{17x}=\frac{17x-34}{17x} =\frac{17*(x-2)}{17x}=\frac{x-2}{x}$

$b)\frac{3}{5a}-\frac{5}{4a}=\frac{3*4}{20a}-\frac{5*5}{20a} = \frac{12-25}{20a} =\frac{-13}{20a} =-\frac{13}{20a}$

$c)\frac{ax+ay}{xy^{3} } *\frac{x^{3} y}{8x+8y} =\frac{a*(x+y)*x^{3}y}{xy^{3}*8*(x+y) } =\frac{ax^{2} }{8y^{2} }$

$d)(\frac{4c^{5} }{7b^{3} } )^{2} =\frac{4^{2} c^{5*2} }{7^{2} b^{3*2} }=\frac{16c^{10} }{49b^{6} }$