Question 375913
{{{(-37x^-1y^-2 / 74y^3 )^-2}}}
Divide NUM and Den by 37
= {{{(-x^-1y^-2 / 2y^3 )^-2}}}
Multiply NUM and DEN by x
= {{{(-y^-2 / 2xy^3 )^-2}}}
Multiply NUM and DEN by y^2
= {{{(-1/ 2xy^5 )^-2}}}
Invert and change the sign of the exponent
= {{{(-2xy^5)^2}}}
= {{{4x^2y^10}}}