3(x+2)-4(x-1)+2(3x-1)-18=0
2个回答
去括号,得3x+6-4x+4+6x-2-18=0
合并同类项,得5x-10=0
x=2
相关问题
3(x+2)-4(x-1)+2(3x-1)-18=0
3x²-(x-2)=0 (2x-1)(x+3)=4 x²-3x-4=0 x²-3x+18=
(1)4x^3+27/16=0 (2)2(x-2)^3=6又3/4 (3)2x^2-18=0 (4)(2x-1)^2=√
1.x^2-3x-18=0 2.x^2+3x-5=0 3.x^2-4x-7=0 4.3^2-6x-9=0 5.3x^2-
1.(2/18-3/18-1/18)X36 2.(1/4-1/2-1/8)X128 3.[9X(-4)]X(-1/4)
解下列方程:(1)(x+2)平方-16=0 (2)(x-1)平方-18=0 (3)(1-3x)平方=1 (4)(2x+3
(x1-x2+4x3-2x4=0;x1-x2-x3+2x4=0;3x1+x2+7x3-2x4=0;x1-3x2-12x3
(1)2x平方+2(根号3)x+1=0 (2)x平方-3x-2=0 (3)x平方-3x-18=0
(1)、2(x-7)²-18=0(2)、4(x+3)²=144
解方程:(1)x2-9=0 (2)x2-7x-18=O (3)5x2=4x (4)2x2+1=3x