Question

Which expression is equivalent

Answer 1

$3 \sqrt{50}\cdot \sqrt{22} = 3 \sqrt{5^2 \cdot 2}\cdot\sqrt{11 \cdot 2} = 3(5)\sqrt{2} \cdot\sqrt{11} \cdot \sqrt{2} = 3(5)(2) \sqrt{11} =30\sqrt{11}$