Question

упростите (5.7)
срочно

Answer 1

$1) frac{(ab)^{3} }{b^{2} } = frac{ a^{3} b^{3} }{ b^{2} } = a^{3}b$ 
$2) ( frac{x}{y} )^{5}* y^{7}= frac{ x^{5} y^{7} }{ y^{5} } = x^{5} y^{2}$ 
$3) frac{ (d*t)^{9} }{ d^{7} }= frac{ d^{9}* t^{9} }{ d^{7} } = d^{2} t^{9}$