What is the limit? limit x to negative 3 of open paren x cubed minus 3 x squared plus 4 x minus 12 close paren
Answer
A
negative 78
B
54
C
30
D
negative 24
Explanation
A polynomial is continuous, so evaluate it by substituting x = -3. This gives (-3)³ - 3(-3)² + 4(-3) - 12 = -27 - 27 - 12 - 12 = -78, so the limit is negative 78.
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