What is the completely factored form of 12x3 - 60x2 + 4x - 20

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex