1. ## Simple algebra problem

Does anyone know the correct method for solving $4x^2+2x = 8$ ? Thanks in advance.

2. Since 2 is a common factor you can divide through by 2: $2x^2+x=4$

Move the 4 over to the left hand side: $2x^2+x-4 = 0$

You can then solve the quadratic is your favourite way (I suggest the formula)

3. Originally Posted by e^(i*pi)
You can then solve the quadratic is your favourite way (but this one factorises)
Don't think so...discriminant = 33

4. Originally Posted by Wilmer
Don't think so...discriminant = 33
Ta, I thought it was a square number for some reason