Practice problem
Find the vertex of the quadratic polynomial (x+4)(x−2)(x+4)(x-2)(x+4)(x−2).
(−1,−9)(-1,-9)(−1,−9)
(7,3)(7,3)(7,3)
(−2,−5)(-2,-5)(−2,−5)
(−5,−5)(-5,-5)(−5,−5)
Type a concept, like “slope” or “photosynthesis”.