Homework Set 6 105106 9193 Homework Score 0 of 1 pt HW Score

Homework: Set 6 (10.5,10.6, 9.1-9.3) Homework Score: 0 of 1 pt HW Score: 66.1%, 29.08 of 4 9.3.61 Question Help The reflector of a flashlight s in the shape of a parabolic surface. The casting has a diameter of4 inches and a depth of 2 inches. How far from the vertex should light bulb be placed? The light bulb should be placed inch from the vertex. (Simplify your answer)

Solution

(x+2)³

Binomial theorem is

using binomial theorem we get

(x+2)³= 3C0 x³2⁰+ 3C1 x²2 +3c2 x2²+ 3c32³= x³ + 3*2x²+ 3(4)x+2³= x³+6x²+12x+8