Solve 5x + 10 = 2x(5x + 10)

First multiply out the right hand side to get5x + 10 = 10x^2 + 20xThen rearrange so everything equals zero, forming a quadratic equation10x^2 + 15x - 10 = 0 To make things easier, you can simplify the equation by dividing everything by 5 to get2x^2 + 3x - 2 = 0 then factorize to get(2x - 1)(x + 2) =0 and solving this you getx = 1/2 and x = -2