Recent content by Need-Help

will you please show me how to solve this?

and yes, problem from a book... odd to find a cubic equation in the quadratic section...

It does actually say, make correct to the first decimal place...?

So how do I factor that? I've never factored a cubic equation...

Do you think there has been a mistake then because the unit I am on is [specifically] quadratic equations? No wonder I wasn't sure about it... If I multiply it out I get 2x^3 - 5x = -1 and then 2x^3 - 5x + 1 = 0 right?

I know I need to factorize which is my problem, I am not sure how to when there is an x outside the paramnthesis?

Homework Statement Homework Equations x(2x^2 - 5) = -1 The Attempt at a Solution This question has been flung at me without any pre-examples how to solve it. I have only dealt with equations like 2x^2 + 5x - 12 = 0. I know that the equation above should be set to zero, but how...