Completing the Square

Front

How do you find "c" when completing the square?

Back

Front

Back

Front

What error was made when solving by completing the square? Options: the second solution should be -4 instead of 4, in the second step they should've added 2 to both sides instead of 1, they square rooted incorrectly, they factored the trinomial wrong

Back

the second solution should be -4 instead of 4