1.4×x+3.2×3=23.6.
解方程,8题:1.4x-3(20-x)=3 2.4-2x+3=-x-5 3.2分之x-1=2-3分之x-2
36-(3x-10)=x-2x 3.2x=14.2-1.5x
解方程:1.x/x+1-1=3/(x+1)(x-2) 2.3/x+2+1/x=4/x²+2x 3.2/3+x/
2.4x-1.4x-3x=5.2-8
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
1.4/3x+1/2x=1 2.x-4/5x=5/6
6x-2x=0.72 5x+3x=3.2×2(过程仔细)
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
3.2+x=4.6 x-2.08=5.76 1.2x=0.84 3x+0.5x=4.2 4x-2.16=1.2 x-0.
++++1.4^x=2^x+6 2.(3/4)^x=1-7/163.(-x^2)^4-2x^2×(x^3)^2+(-x^