Asked in Math and ArithmeticAlgebra
Math and Arithmetic
How do you solve 4x3 equals 12x2-x-3 equals 0?
Asked in Math and Arithmetic, Algebra
What degree polynomial equation is 4x3 plus 7x2 - 4x equals 0?
Asked in Math and Arithmetic, Algebra, Calculus, How To
How to solve 4x3 plus 0.4x2 plus 0.01x-2.4x10-18 equals 0?
There are a number of ways. One possibility is the iterative method. Rewrite the equation so as to make x the subject: 4x3 + 0.4x2 + 0.01x - 2.4*10-18 = 0 4x3 = 2.4*10-18 - 0.4x2 - 0.01x x3 = (2.4*10-18 - 0.4x2 - 0.01x)/4 x = cuberoot[(2.4*10-18 - 0.4x2 - 0.01x)/4] The original equation is approximately equal to 4x3 + 0.4x2 + 0.01x = 0 or x*(20x - 1)2 = 0 which has roots at x = 0 and x = -0.05 Start with a value, x1 near one of these roots and use the iteration: xn+1 = cuberoot[(2.4*10-18 - 0.4xn2 - 0.01xn)/4] where n = 1, 2, 3, etc to improve your estimates. The resulting roots are, not surprisingly, 0 and -0.05 to 10 decimal places.
Asked in Math and Arithmetic, Algebra, Calculus
How do you solve 0 equals x squared minus ten x plus 16?