Can someone pls help

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

Atemperature of 1.64◦f corresponds to answer in units of ◦c.