Tolong bantu jawaban nya yah

1. limit

a. lim(x->3) (x² +8)./(x²+2) = (3²+8)/(3² +2) = (17/11)

b. lim(x->-2  (x² + 8x-9)/ √(x² +8x -9) =
lim(x->2)  √(x² +8x -9) = √(2² +8(2)- 9 = √11


5. fungsi naik
y = 2x³ + 9x² + 24
y' > 0
6x² + 18x > 0
6x(x + 3) > 0
x > 0 atau x < - 3

fungsi turun f '(x) < 0
6x² + 18x < 0
6x(x + 3) < 0
x < 0 atau x > - 3