(1717)-178282(73828)72

Assuming standard interpretation (juxtaposition means multiplication): Compute 1717 − 178282 × 73828 × 72.

• 178,282 × 73,828 = 13,162,203,496
• 13,162,203,496 × 72 = 947,678,651,712
• 1,717 − 947,678,651,712 = −947,678,649,995

Answer: -947,678,649,995

If you meant a different grouping (e.g., (1717 − 178282)(73828)72), let me know and I’ll recompute.