simplify 3/5x-2/7x,then solve the equation 3/5x-2/7x=2/5

simplify 3/5x-2/7x,then solve the equation 3/5x-2/7x=2/5 并化解该式至最简(simplify the expression),并列明过程.1) 15x ÷ 3 ÷ 5x -3 thanks! simplify each expression1.4（b+8）-7b 2.-8（m+2)-19m 3.4.3（5.6+c）+9c4.83x+15（x-17) 5.3-5(a-4） 6.-5b-2（b-1）7.16-4(c+3) 8.4x-8(2x+7) 9.9-(2b-6）10.21z-（15z+10）例：7（t+8.5）-5t+3=7t+59.5-5t+4=7t-5t+59.5+4=2t +63.5————— Use long division and partial fractions to simplify the rational function(x^4+x^3−x^2−x+1) / (x^3−x) 简化三角函数!Simplify the expression.cos(2 tan^−1 (x)) matlab的简化函数simple为什么我使用simple或者simplify简化后g2 =((2*x + 1)^3/x^3)^(1/3),而不是g2=(2*x+1)/x 或者g2=2+1/x 能说明下方法吗23^x-4=16^x x= if the difference of a number and its reciprocal is 16/15 find the number.simplify (x^3+27)/(x+3) given the following roots 3 and -2 write the quadratic equation.solve ｛y=5 y=2x^2 matlab求解微分方程的问题eq1='D2y+3*Dy+2*y=2*Dx+6*x';eq2='x=Heaviside(t)'; %表示阶跃函数cond='y(-0.001)=0,Dy(-0.001)=0'; %0-时刻的值yzs=dsolve(eq1,eq2,cond);yzs=simplify(yzs.y) %解微分方程,并化简为什么最有一句必须 英语翻译Evaluate the expression 4(2X+3)+2(X+1)-7 for each value of X.A.1B.6C.22D.12E.Simplify the expression.When you evaluate the simplified expression for X=1 and X=6,do you get the same results as in part (a)and part (b)?Do you get the same re MATLAB程序问题解一个方程组如下syms x y z t a b c d m s; f = x+z-a;g = (2^(1/2)*m*x)/2 + (2^(1/2)*m*y)/2+(2^(1/2)*m*t)/2 - (2^(1/2)*m*z)/2-b;h = m^2*(y- t)-m^2*c;k = (2^(1/2)*m^3*(y-x+z+t))/2-m^2*d;[x,y,z,t] = solve(f,g,h,k); x = simplify( Simplify 2-1/4 _____,giving your answer in lowest terms 3-1/5 maple 我在maple中解数学题,可以直接得出结果,但本人希望得到解题过程,如下题simplify(3*(x+y)^2+(x+y)^3)化简后直接得到过程,我现在想要一步一步的化简过程, 幂函数f(x)=(t^3-t+1)x^{(7+3t-2t^2)/5} (t∈N)是偶函数,则实数t的值为 differentiate the following functions and simplify and factorizeg(x)=(x+1)的八次方 * E的X次方 我想问的关于matlab在信号系统中的应用,关于频移的,ft=sym('4*exp(-3*t)*heaviside(t)');fw=simplify(fourier(ft))subplot(211)ezplot(abs(fw))grid onf1=sym('ft*exp(2*i*t)')fw2=simplify(fourier(f1))subplot(212)grid onezplot Simplify the expasion of（1-x)^8+(1+x)^8 including the term in x^2,by putting x=0.01,find the approprizte value of 0.99^8+1.01^8,correct to three decimal places. *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x