SOLUTION: Add the proper constant to each binomial so that the resulting trinomial is a perfect square trinomial. Then factor the trinomial. x^2 + 8x + ?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Add the proper constant to each binomial so that the resulting trinomial is a perfect square trinomial. Then factor the trinomial. x^2 + 8x + ?       Log On


   

Question 640490: Add the proper constant to each binomial so that the resulting trinomial is a perfect square trinomial. Then factor the trinomial.
x^2 + 8x + ?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Take half of the middle coefficient 8 to get 8/2 = 4

Now square 4 to get 4^2 = 16

So x^2 + 8x + 16 is a perfect square.