  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: cubic polynomials   start over

4 items are filed under this topic.    Page1/1            What is the inverse function of y=x^3 +x? 2007-09-19 From saman:what is the inverse function of y=x^3 +xAnswered by Harley Weston.     Cubic polynomials 2007-08-14 From Jalon:The cubic function f(x) = (x+2)^3 touches the x axis only once at x = -2 (negative two). it could also be written as f(x) = (x+2)(x+2)(x+2) Investigate the cubic functions below as well as the one above and comment clearlt and fully on where they touch/intersect the x axis, and how these points relate to the given function. a) f(x) = (x  3)(x +4)(x  2) b) f(x) = x(x + 1)^2 (^2 = that means it squared) Your comments should reference graphs illustrating your conclusions and display another 2 trinomial graphs that demonstrate your conclusions. particular attention should be given to the number of times your function crosses or touches the X axis. i dont know how this works but could you send the answer to..... spongy_91@hotmail.comAnswered by Stephen La Rocque.     Question about 3rd degree polynomials 1999-04-23 From Patrick Bryan:What is the general solution to the equation with the form: a*x^3 + b*x^2 + c*x + d = 0 I have once seen a solution to this a few years ago, but I do not recall if it was a general solution. What I do know, is that you could simplify this equation to: a*x'^3 + p*x' + q = 0...Answered by Doug Farenick.     Factoring polynomials 1999-03-29 From Karen:I have been unable to factorise a polynomial equation and was wondering if you could please help. It is level (10-12) maths. The polynomial is x3 + x2 - 24x + 36 I have tried a few factorisation methods such as foctorisation by grouping but it won't work this polynomial. Please help.Answered by Jeff Walters and Jack LeSage.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français