4/1(2X²+6X)+(5/2X²-9X)÷3=……
1个回答
4/1(2X²+6X)+(5/2X²-9X)÷3
=x²/2+3x/2+5x²/6-3x
=8x²/6-3x/2
=(4x²/3)-(3x/2)
相关问题
(1)9x=[3/8](2)x÷[5/6]=[4/5](3)[2/3]x-[1/6]x=[1/2](4)[3/4]÷x×
(1)6/7X=2/9÷2/3 (2)X÷1/12=4/5 (3)3/4X-1/5X=22/25
解方程. 5 6 x+ 1 4 =4 x- 3 5 x= 3 5 × 2 9 x÷75%= 2 9 .
(9x³-6x²-5x+2﹚÷﹙3x-1﹚=?
4/3x÷6/1=8的计算过程4×2/1÷x=10 14/5x=9/5 x÷3/2=8/5 2/1x÷5/1=10 5/
解方程:①[1/3]x+[5/6]x=[1/6] ②[9/2]÷x=8 ③2x-[3/4]x=[3/8].
解方程 5 9 :x= 2 9 1 3 x- 2 3 + 1 3 =460%x÷ 6 25 = 5 4 .
1&6=1X2X3X4X5,6&6=6X7X8X9X10.据此求:(2&5)÷(6&5)
解方程1.5x+9.6=36.6 x-2/5x=4/725x÷2=475 3/4x-1/2x=1142.4x-48=5.
1.(x+5)÷6>(10-x)÷9+1 2.2x-2≤(10x+1)÷6