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haizz carrying the team again 0:00 Introduction 0:47 Introduction, what is Viet 8:20 example 1 13:21 example 2 find m to get the equation with 2 positive, negative, opposite numbers 28:17 Example 4, Viet application 48:35 Example 5, try the admission test 54:33 Example 6 find max min 59:37 Final note