Question

Find the value of c that completes the square
v^2-40v+c
Please Help

Answer 1

half the coefficient of "v" adn then square it.

Answer 2

I'm thinking it's C

A.
40
B.
404
C.
400
D.
–400

Answer 3

v^2-40v+c = v^2-2(20)v +c
check that instead of c 20^2 must be there for it to complete square..