Question

(radical245-2radical3)×(radical147)+3radical8×5radical72)+6radical128​

Answer 1

$= 49 \sqrt{15} - 42 + (3 \times 2 \times 2 \times 5 \times 6) + 48 \sqrt{2 } = 49 \sqrt{15} - 42 + 360 + 48 \sqrt{2} = 49 \sqrt{12} + 318 + 48 \sqrt{2}$