0.8x33x1.257.2x9.9
4个回答
0.8x33x1.25
=4/5×5/4×33
=1×33
=33
7.2x9.9
=7.2×(10-0.1)
=7.2×10-7.2×0.1
=72-0.72
=71.28
相关问题
1.25-x=2.8 2.36÷x+9=0 3.33x=79-x 4.5x-(11-7)=x+3 5.169÷(x+9)
诺3x^2-9x-33=0,求(x+1)(x-1)(x-2)(x-4)=?
(2X+根号3)^9=a0X^9+a1X^8+.+a8X+a9
1.2x-0.8X=9.
13.2x+9x=33.3 8x-3x=105 5.4x+x=12.8 x-0.36x=16
已知(1-2x)^9=a0+a1x+a2x²+···a8x^8+a9x^9,那么a1+a2+···a8+a9=
计算:13.2x+9x=33.3 8x-3x=105 5.4x+x=12.8 x-0.36x=16 x+(x+1)=97
(1)x+4.9= 49 (2)x-35.8= 4.5+7.6 (3)0.9x-9.2=8.8 (4)25x÷0.2=1
13.2x+9x=33.
若(x-2)^9=a0+a1(x-1)+a2(x-1)^2+...+a9(x-1)^9,则a8=?