Jawab:

Penjelasan dengan langkah-langkah:

soal 1

lim x-> 3 (6x² - 2) = 6.3² - 2

=  54- 2

=  52

soal2

lim x-> -2  (x² +7x +10) / ( x +2)

lim x-> -2  (x+ 2)(x + 5) / ( x +2)

lim x-> -2  (x +5) =  - 2 + 5 =  3

soal 3

lim x-> 4   (x² +2x -24) / ( x-4)

lim x-> 4   (x - 4)(x + 6) / ( x-4)

lim x-> 4   (x + 6) =  4 + 6= 10

soal 4

lim x-> 2   (3x² - 2x -8) / ( 2x² - 3x - 2)

lim x-> 2   (x- 2)(3x + 4)/ (x-2)(2x +1)

lim x-> 2   (3x + 4)/ (2x +1)

= ( 3(2) + 4 ) / (2(2) + 1)

= ( 6 +  4) / (4 + 1)

= 10/5

= 2

soal 5

lim x-> 3   ( x² - 9 )/  √(x² +7) - 4

lim x-> 3   ( x² - 9 ) (8)/  (x²- 9)

lim x-> 3   8

= 8