Given Limit Problem: We are given the limit problem:limx→2x2−4x3−2x2First, let's try to directly substitute x=2 into the expression to see if it yields a determinate form.Substituting x=2 gives us:22−423−2⋅22=4−48−8=00This is an indeterminate form, so we cannot find the limit by direct substitution.
Direct Substitution: Since we have an indeterminate form of 0/0, we should look for a way to simplify the expression. We can factor the numerator and the denominator.The numerator x3−2x2 can be factored as x2(x−2).The denominator x2−4 is a difference of squares and can be factored as (x+2)(x−2).Now we rewrite the limit expression with the factored terms:limx→2(x+2)(x−2)x2(x−2)
Factorization: We notice that (x−2) is a common factor in both the numerator and the denominator. We can cancel this common factor out:x→2limx+2x2Now, we can try to directly substitute x=2 into this simplified expression.
Cancellation: Substituting x=2 into the simplified expression gives us: 2+222=44=1 This is the value of the limit as x approaches 2.
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