Question

Help help help help!!!!

Answer 1

$1)\sqrt{2560000}=\sqrt{256*10000}=\sqrt{16^{2}*100^{2}}=16*100=1600\\\\2)\sqrt{\frac{732^{2}-392^{2}}{1360}}=\sqrt{\frac{(732-392)(732+392)}{1360}}=\sqrt{\frac{340*1124}{4*340}}=\sqrt{\frac{1124}{4}}=\sqrt{281}$