What is the value of #k# ?
Find the value of #color(red)k# for which the inequality #color(red)(x^2-2(4k-1)x+15k^2-2k-7>0# is valid for ANY value of #color(red)x#
Find the value of
1 Answer
Jun 16, 2018
The answer is
Explanation:
For a quadratic equation
The discriminant must be
When
graph{x^2-14x+49 [-14.48, 21.55, -4.62, 13.4]}
When
graph{x^2-30x+225 [-14.48, 21.55, -4.62, 13.4]}
When
graph{x^2-22x+122 [-14.48, 21.55, -4.62, 13.4]}