5.2x1.8+0.52x2简便运算
“(1/4x1/6+1/6x1/8+1/8x1/10+1/10x1/12)x2的简便方法
0.625+5/8x5+62.5%x2是多少 简便运算
(4.4x7.5x4.8)除以91.5x2.5x2.4)简便运算
5x2.5*12.5*6.4简便运算
0.5x2.33x8的简便运算
3、5x2、1,简便运算
简便运算:-100x1/8-0.125x35.5+14.5x(-12.5%).
设x1 x2属于R,常数a>0,定义运算:x1*x2=(x1+x2)^2-(x1-x2)^2,若x>=0,则动点P(x,
设x1,x2∈R,常数a>0,定义运算"*":x1*x2=(x1+x2)^2-(x1-x2)^2.动点P(x^2,x*a
4.6x2.5+5.3x2.5+0.25简便运算
(90+1/88)x1/89 怎么简便运算
48X1/5加52除以五简便运算