Anyone want to talk am bored and h0rny

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

Sketch one cycle if the cosine function y=2cos2theta