SOLUTION: 1.Find the value of "c" that makes the trinomial a perfect square: X^2-8x+c

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: 1.Find the value of "c" that makes the trinomial a perfect square: X^2-8x+c       Log On


   

Question 459792: 1.Find the value of "c" that makes the trinomial a perfect square: X^2-8x+c
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-8x+16=
Take half of 8 and square it
8/2=4
4^2=16
(x-4)^2