Question

The method for completing the square can be used to write the expression -2x^2+12x-5 in the form a(x+b)^2 +c, where a,b, and c are constants. What is the value of c? Thank you for any help.

Answer 1

-2x^2+12x-5
-2(x^2-6x +9) -5 -2*9
-2(x-3)^2 -23

check that.