988:)))))))))))))) i hope its true
I think the answer is x=10
Ans) 70
Tell me if you need steps
(Am 100% sure with this answer)
"Completing the square" is a step in the solution of quadratic equations. It can be accomplished without the guesswork or trial-and-error associated with methods like factoring, and it always leads to a solution. It is the method by which the quadratic formula is derived.