# Evaluate the following limits: limx→-3[x+3x2+4x+3] - Mathematics and Statistics

Sum

Evaluate the following limits: lim_(x -> - 3)[(x + 3)/(x^2 + 4x + 3)]

#### Solution

lim_(x -> - 3)[(x + 3)/(x^2 + 4x + 3)]

= lim_(x -> - 3)(x + 3)/((x + 3)(x + 1)

= lim_(x -> - 3) 1/(x + 1)    ...[("As"  x -> -3","  x ≠ - 3),(therefore x + 3 ≠ 0)]

= 1/(-3 + 1)

= -1/2

Concept: Factorization Method
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