What is the completely factored form of x4 8x2 – 9? (x 1)(x – 1)(x 3)(x 3) (x2 – 1)(x 3)(x – 3) (x 1)(x 1)(x 3)(x 3).

Idon't see any graph, however the graph of the function : f(x) = x²-2x+3 is a parabola: 1) open upward (since a> 0)2) it intersects y-axis in 3 (y=3)3) its axis of symmetry is x = +1 ( -b/2a)4) it's minimum is y = -2, so its vertex is (1,-2)5) it doesn't intersect the x-axis since discriminant < 0 

0.0078, 0.008, 0.077, 0.07