Identify Function and Point: Identify the function and the point at which we need to find the limit.We are given the function (x3+x2−6x)/(x2+3x) and we need to find its limit as x approaches −3.
Simplify if Possible: Simplify the function if possible.We can factor both the numerator and the denominator to simplify the expression.Numerator: x3+x2−6x=x(x2+x−6)Denominator: x2+3x=x(x+3)Now we factor the quadratic x2+x−6 in the numerator.x2+x−6 can be factored into (x+3)(x−2).So the function simplifies to:x(x+3)x(x+3)(x−2)
Cancel Common Factors: Cancel out common factors.We can cancel the common factor of x and (x+3) from the numerator and the denominator.This gives us:1x−2Which simplifies to:x−2
Find Limit: Find the limit by direct substitution.Now that we have simplified the function, we can find the limit by substituting x with −3.(−3)−2=−5