Simplify:
2x²(4x³-3x²+6x)

Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4