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It is proved by collocation method that the value of - 4x + 27 is greater than zero and the value of - 6x & # 178; + 24x-25 is less than zero, It must be proved by matching method!
X & # 178; - 4x + 27 = (X-2) & # 178; + 23 cause (X-2) & # 178; ≥ 0, so x & # 178; - 4x + 27 > 0-6x & # 178; + 24x-25 = - 6 (X-2) & # 178; - 25 + 24 = - 6 (X-2) & # 178; - 1 cause - 6 (X-2) & # 178; ≤ 0, so - 6x & # 178; + 24x-25 < 0
RELATED INFORMATIONS
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