SOLUTION: how do I solve this problem for value(s) of k? x^2-8x+k=0

Question 319331: how do I solve this problem for value(s) of k?
x^2-8x+k=0
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
how do I solve this problem for value(s) of k?
x^2-8x+k=0
----------
Quadratic Formula:
x = [8 +- sqrt(8^2 - 4k)]/2
---
x = [8 +- sqrt(4(16-k))]/2
---
x = [4 +- sqrt(16-k)]
x = 4+sqrt(16-k) or x =4-sqrt(16-k)
---
You could use those results to solve for "k".
================================================
Cheers,
Stan H.
============
RELATED QUESTIONS
please solve this problem: For what value of k will the equation below describe a... (answered by Fombitz)

For what value of k does x^2 + kx + 1 = 0 have two different real roots? This is what (answered by Boreal)

Please help me solve this problem prove that for all values ok k ,roots of this... (answered by oscargut)

could someone assist me on how i can crack this problem it says in the quadratic equation (answered by Theo)

How do I do this problem?solve n=81jk^2 for k (leave +- in your... (answered by stanbon)

How do I solve x^2-(k+1)x+k=0 when k is not equal to... (answered by stanbon)

Determine the value(s) of for which the following system of equations has nontrivial... (answered by Edwin McCravy)

Find the value(s) of k for which the equation... (answered by Fombitz)

Hi, I'm in a hybrid math class at my college, so i don't get to see my teacher for... (answered by ewatrrr,Edwin McCravy)