What number could be substituted to X so that the result of 2x(cube)+3x(squared)+2x-2 will be 0?

Answer 1

The equation you wrote is:


2x^3+3x^2+2x-2 = 0

First, you must factor this equation, which gives:


(2x-1)(x^2+2x+2)

Now, set each equal to 0

2x-1 = 0 or x^2+2x+2 = 0

Solving for the x in the first solution shows that x = 1/2 could be a solution

You can handle the rest of your homework.

Good luck!