Soal UNBK SMA 2017 Monggo di jawab.. #nospam

Bab Limit
Matematika UNBK SMA 2017

Lim (x² - x - 2) / (√(x + 7) - 3)
x→2 

= Lim ((x - 2) (x + 1) (√(x + 7) + 3) / (x + 7 - 9)
   x→2

= (2 + 1) (√(2 + 7) + 3)
= 3 x 6
= 18

jawabannya D

langsung aja y

lim x² - x - 2 / √x+7 - 3
x→2

lim x²-x-2/√x+7 - 3 × √x+7 + 3 / √x+7 + 3
x→2

lim (x-2)(x+1)(√x+7 + 3) / x+7 - 9
x→2

lim (x-2)(x+1)(√x+7 + 3) / (x-2)
x→2

lim (x+1) (√x+7 + 3)
x→2

= (2+1) (√2+7 + 3)
= 3 (√9 + 3)
= 3 (3+3)
= 3 × 6
= 18

jawabannya D

semoga berguna +_+