Question

ПОМОГИТЕ С НОМЕРОМ 4,ПОЖАЛУЙСТА!!!

Answer 1

$frac{(d^{9})^{2} times ( {d}^{7})^{4} }{ {d}^{35} times ( {d}^{2})^{5} } = 15 \ 1)( {d}^{9} )^{2} times ( {d}^{7} )^{4} = {d}^{18} times {d}^{28} = {d}^{46} \ 2) {d}^{35} times ( {d}^{2} )^{5} = {d}^{35} times d^{10} = {d}^{45} \ 3) frac{ {d}^{46} }{ {d}^{45} } = 15 \ d = 15$