Find the interval in which the following functions are strictly incera

1.	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
Answer» Find the interval in which the following functions are strictly incerasing or decreasing $x^{2} + 2 x - 5$ $10 - 6 x - 2 x^{2}$ $- 2 x^{3} - 9 x^{2} - 12 x + 1$ $6 - 9 x - x^{2}$ $(x + 1)^{3} (x - 3)^{3}$

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

Answer»

Find the interval in which the following functions are strictly incerasing or decreasing

$x^{2} + 2 x - 5$

$10 - 6 x - 2 x^{2}$

$- 2 x^{3} - 9 x^{2} - 12 x + 1$

$6 - 9 x - x^{2}$

$(x + 1)^{3} (x - 3)^{3}$