621²-769×474-148²
1个回答
621²-769×474-148²=621²-148²-769×474=(621+148)*(621-148)-769*474
=769*473-769*474=769*(473-474)=-769
相关问题
因式分解计算 621²-148²-769×373
英语翻译in a recent year,Karl Malon made 474 out of 621 throwing
21×29=609 22×28=616 23×27=621 34×36=1224 你有什么发
(1)879+126+474;(2)(44+83)×(25÷5);(3)[(4010-410)÷6]×7;(4)25×3
146,148,148,148,156.148,157,160,140,148的平均数
电阻474如何读
(13+16+112+124+148+196+1192+1384)×128.
(13+16+112+124+148+196+1192+1384)×128.
(13+16+112+124+148+196+1192+1384)×128.
146,148,150,154,148,158,148,160,141,148这组的平均数是( )