text 297 1172 1404 1952
text 297 818 1403 986
equation 575 1966 1123 2043
equation 360 1001 1393 1153
text 297 308 1402 372
equation 310 227 1388 298
text 297 575 1264 610
equation 566 496 1401 566
equation 532 389 1401 456
equation 480 627 1216 698
equation 490 738 1209 809
text 298 472 344 498
text 298 714 344 740