ashwinipanigrahy ashwinipanigrahy

26-05-2017
Mathematics

contestada

Solve the inequality.x^2 + 1 > 8x-6

Respuesta :

FernandoAllDay2 FernandoAllDay2

26-05-2017

The answer is x < 1 or x > 7

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akaleti47 akaleti47

26-05-2017

rewrite as x2 -8x +7 > 0

so, (x-7)(x-1)>0

clearly the product would be >0 either when both are +ve or when both are -ve

both positive⇒x>7
both negative⇒x<1
so, "x<1 and x>7" is the answer

Answer Link

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