Find the values of x for which x2+6<5x.
Find the interval in which the following functions are strictly incerasing or decreasing
x2+2x−5
10−6x−2x2
−2x3−9x2−12x+1
6−9x−x2
(x+1)3(x−3)3
Find the intervals in which the following functions are strictly increasing or decreasing:
(a) x2 + 2x − 5 (b) 10 − 6x − 2x2
(c) −2x3 − 9x2 − 12x + 1 (d) 6 − 9x − x2
(e) (x + 1)3 (x − 3)3