Question

Сделайте пжжжжжжжжжжжжжжж

Answer 1

$c) 93^{2} -186*53+ 53^{2}=8649-9858+2809 =1600$
$d) frac{ 39^{2}- 18^{2} }{ 35^{2}-256 }= frac{1197}{969} = frac{21}{17}$