Evaluate left hand limits algebraically of a rational function

The video tutorial explores solving equations using direct substitution and factoring methods. Initially, direct substitution is attempted but found ineffective. The focus then shifts to factoring, where the equation is broken down into factors. The tutorial emphasizes the importance of approaching limits using numbers close to the target value, demonstrating how to determine the sign of the result. The session concludes with an understanding of how negative and positive values interact in calculations.

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