Maypenelopelasango Maypenelopelasango Math Answered What is f(x) = x² + 2x - 1 in vertex form?A. f(x) = (x+1)² + 1B. f(x) = (x+1)² - 1C. f(x) = (x+1)² -3D. f(x) = (x-1)² +2