0 votes 0 votes If $\sqrt{5 x+9}+\sqrt{5 x-9}=3(2+\sqrt{2})$, then $\sqrt{10 x+9}$ is equal to $3 \sqrt{7}$ $4 \sqrt{5}$ $3 \sqrt{31}$ $2 \sqrt{7}$ Others cat2023-set1 quantitative-aptitude + – admin asked Mar 30 • edited Mar 30 by makhdoom ghaya admin 4.5k points 45 views answer comment Share See all 0 reply Please log in or register to add a comment.