Solving inequality | X & # 178; - 11x + 21 | x

Solving inequality | X & # 178; - 11x + 21 | x


|x²-11x+21|>x
When X & # 178; - 11x + 21 > 0, that is: x > (11 + √ 37) / 2 or XX, X & # 178; - 12x + 21 > 0, x > 6 + √ 15 or X



The solution process of the square - 11x + 5 = 0 of the collocation method equation x is complete


Matching method: X & # 178; - 11x + 5 = 0
(x-11/2)²-121/4+5=0
(x-11/2)²-101/4=0
(x-11/2)²=101/4
x-11/2=√101/2
x=(11+√101)/2
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