How do I solve these two pre-calc problem involving limits?

fulgore

New member
Determine the limit graphically

lim x --> 0
( ( 2 + x )^3 - 8 ) ÷ x

and

lim x --> 0
( sin x ) ÷ ( 2x^2 - x )

The answers are 12 and -1.
 
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