Question

When solving x2 – 8x = –11 by completing the square what value is added to both sides of the equation?

Answer 1

4 but idk if it wil be - or +

Answer 2

always +

Answer 3

and it is not 4 you add to both sides, but the square of 4

Answer 4

\[x^2-8x=-11\]half of 8 is 4 and \(4^2=16\) so next line is
\[(x-4)^2=-11+16\]