Solve the equation ,Give the solution in exact fSolve the equation ,Give the solution in exact form.不要用翻译软件翻译的

solve the equation 49-81x=0 How to solve The number of real solution to the equation x/sinx=100 is Solve the equation cosx= -0.4 on the interval 0≤x＜2π. 常微分solve the equation(x+4y)y'=2x+3y+5 Solve the equation ,Give the solution in exact fSolve the equation ,Give the solution in exact form.不要用翻译软件翻译的 英语翻译solve the equation graphically by finding x-intercepts.confirm by using factoring to solve the equation.x²－x-20=04x²－8x+3=0x(3x－7)=6 simplify 3/5x-2/7x,then solve the equation 3/5x-2/7x=2/5 美国的数学题 顺便帮算出答案Solve each equation for the variable specified3t-4=6t-s,for t Solve the polynomial equation:-12x⁴- 8x³ + 49x² + 39x - 18 = 0 Solve the polynomial equation:x^5 - 5x⁴ - 4x³+ 36x²+ 27x - 135 = 0 Hence by using a suitable substitution ,solve the equation 25^2(5x+3)=50x+24 solve the equation 2x^2-4x=-3 and express the roots in a+bi form.太久没做了,忘记怎么算了. 英语翻译AbstractThis chapter introduces ordinary differential equation (ODE) and its applications in finance and economics research.There are various approaches to solve an ordinary differential equation.Among them,the most commonly used approach Solve the equation:(x-6)(x+5)-2(x+2)(x-3)=(4-x)(x+7)+2求解答过程 solve the equation .solve the equation 2x³-3x²-11x+6=0 given that -2 is a zero of f(x)=2x³-3x²-11x+6.要翻译和解题过程 Equation come/get into the equation the problem solve itThe tangent line to a circle may be defined as the line that intersects the circle in a single point,called the point of tangency.If the equation if the circle is x^2 + y^2 = r^2 and the equation of the tangent line is y = mx + b,