Solve x2 + 4x = 4 for x by completing the square. x = −4
x = 0
x equals plus or minus square root of 8 plus 2
x equals plus or minus square root of 8 minus 2

It’s hard to understand what you put.. can you show a picture ?

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?