Step-by-step explanation:
E = m/2g(v²-u²)
2g×E = 2g×m/2g(v²-u²)
2Eg = m(v²-u²)
2Eg = mv² - mu²
mu²= mv² -2Eg
mu²/m = mv² -2Eg /m
u²= v² -2Eg
u = √v²-√2Eg
The answer is -4+72/2y+9 when you solve using polynomial division :)

Since logs can't equal zero, 5 is your only solution.
The rule would be times by 3
Cut the circle in 12 parts