Question

simplificami=7√128. j=10√1024

Answer 1

$7 \sqrt{128} \times j = 10 \sqrt{1024} \\ 7 \times 8 \sqrt{2} j = 10 \times 32 \\ 56 \sqrt{2} j = 320 \\ j = \frac{40}{7 \sqrt{2} } \\ j = \frac{40 \sqrt{2} }{14} \\ j = \frac{20 \sqrt{2} }{7}$