Find the range of values of k for which the expression x^2 -4x + k will be positive for all real values of x. Hence state the range of values of x satisfying the inequality x^2 -4x + 7 > 0.

For the first part, this is what i did:
(-4)^2 - 4(k) > 0
k<4

but how do i do the second part ("hence...")????

1 answer

I need more information son
Similar Questions
    1. answers icon 4 answers
  1. What is the purpose of the SUM function in Excel?To calculate the average of a range of cells To find the maximum value in a
    1. answers icon 1 answer
  2. Find all excluded values for the expression.That is, find all values of 'y' for which the expression is undefined. y^2 - 7y - 8
    1. answers icon 1 answer
    1. answers icon 0 answers
more similar questions