The angle of depression from the top of a flag pole to a point on the ground is 30°. if the point on the ground is 75 feet from the base of the flag pole, how tall is the pole to the nearest foot?
a) 38 feet
b) 43 feet
c) 53 feet
d) 106 feet

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form