The vertex form of the equation of a parabola is y=(x+3)^2+53. what is the standard for of the equation

x squared plus 9 plus 53. x squared plus 62. square root both sides. x equals 7.9 or 8. 
Hope this helps.

Ido not know my friend

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?