162x2+167x3+167x5怎么简便?

2025-04-08 10:37:36
推荐回答(2个)
回答1:

162x2+167x3+167x5
=(167-5)x2+167x3+167x5
=167x(2+3+5)-5x2
=167x10-10
=1670-10
=1660

回答2:

162×2+167×3+167×5
=(167-5)×2+167×(3+5)
=167×2-5×2+167×8
=167×(2+8)-10
=1670-10
=1660