2x^2-4x=16 1 Write the equation in standard quadratic form. 2 Factor. (Factor a GCF first, if possible, and then factor a trinomial if possible.) 3 Use the Zero Product Property. 4 Solve each equation. 5 Check your solutions.
Standard form 2x^2 - 4x - 16 = 0
Factored (2x+4)(x-4) = 0
2x+4 = 0 or x-4 = 0
x = -2 oro x = 4
Sustitute in -2 to see if the equation 'works' then try x= 4 to see if it too, works.....