Your tutor has been such an inspiration to me as I have difficulty getting some of the physics concepts down and truly understanding them. She takes the time to fully explain each and every aspect of any problem I might ask for help and always with encouragement and humor.
-
- -
- 9th Grader, from Kansas
find the value of c that makes the expression a perfect square trinomial, then write the expression as the square of a binomial :x^2-cx+25
c= 10 or -10.
when c= 10, expression is x^2 -10x + 25 = (x-5)^2