Question

3p^4/5q^8*15q^2(p-5)/7q^6

Answer 1

$frac{3p ^{4} }{5q^{8} } * frac{15q ^{2}(p-5) }{7q^{6} }=frac{3p ^{4} }{q^{6} } * frac{3(p-5) }{7q^{6} }=frac{9p ^{4}(p-5) }{7q^{12} } =frac{9p ^{5}-45p ^{4} }{7q^{12} }$