Question

Вычислите.$(243^{2} +2*243*57+ 57^{2} )$ : $( 53^{2} - 47^{2} )$

Answer 1

$frac{(243+57)^2}{(53-47)(53+47)} = frac{300^2}{6*100} = frac{90000}{600} = frac{150}{1} =150$