0.5X0.8X0.2X1.25X0.4X2.5
1个回答
0.5X0.8X0.2X1.25X0.4X2.5
=(0.5X0.2)X(0.8X1.25)X(0.4X2.5)
=0.1X1X1
=0.1
相关问题
1.25x0.59x0.8简便算法.9.8x25 0.32x1.25 0.4x2.5x12.5x0.8
x^2-4(0.5-0.25x)(1.5-0.75X)-24(0.5-0.25X)^2
求未知数x. [5/6]x-0.4=3.4 4(x+0.2)=2.4 [5/8]:x=0.25:3 [1.25/0.25
不等式(2x-0.5)/0.5-(2x-1.4)/0.2>(0.5-x)/0.25
用简便方法计算: (1)0.4x0.08x0.2x12.5x0.25x0.5 (2)4.8x56.
x²+4x-2=0,x²-4x+1=0,(x+√5)(x-√5)=20,x²+6x+5=8x+7,25(2x-1)²-1
(4x-1.5)/0.5-(5x-0.8)/0.2=(1.2-x)/0.1-3
5(2-x)=-(2x-7) 0.5x-2=0.8(2x-1.5) 2(x+0.5)-3(x-0.4)=5.6
简便计算题3.2X1.25和1.2X25+0.8X2.5简便计算4.8X0.252.33X0.5X41.5X1051.2
求1/2x^2-1/4x+0.2x^3+0.25x-0.5x^2-1/5x^3+0.5x-1 其中x=12/13