Question

упростите выражение √242-3√8/2

Answer 1

$sqrt{242} - frac{3 sqrt{2*4} }{2} = sqrt{242} - frac{3*2 sqrt{2} }{2} = sqrt{121*2} -3 sqrt{2} =11 sqrt{2} -3 sqrt{2}$
$=8 sqrt{2}$