What is the expanded form of 3x(x+3)^2?

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

State if the two triangles are congruent. if they are, state how you know?

Determine the standard form of the equation of the line that passes through (-2,0) and (8,-5)